Bolt Extractor

Bolt Extractor

PPS submachine gun - Hydraulic Couplings - Precision Fasteners manufacturer

History
The PPS was created in response to a Red Army requirement for a compact and lightweight weapon that would provide similar accuracy and firepower (with a reduced rate of fire) while utilizing more cost-effective means of production than the Soviet PPSh-41 submachine gun being widely deployed at the time. During the design phase, emphasis was placed on simplifying the production process and eliminating most machining operations; sheet-steel stamping was selected to make most of the weapon's parts. These cost-saving measures reduced the amount of machined components to a bare minimum, cutting down machining time by more than half (2.7 hours of machining required to complete a PPS as opposed to 7.3 hours for the PPSh-41). Savings of over 50% were also noted in terms of raw steel usage (6.2 kg instead of 13.9 kg) and the number of workers required to fabricate the individual components and conduct final assembly of the weapon.
Prototypes were evaluated successfully during the spring of 1942, after which the firearm was accepted into service later that year as the PPS-42 (Russian: - or Pistolet Pulemyot Sudayeva model of 1942). The weapon was thrust into small-scale production during the Siege of Leningrad, however mass production did not commence until early 1943 at the Sestroryetsk Arsenal (over 45,000 weapons were produced before being replaced by the improved PPS-43). The improvements to production efficiency allowed the Soviets to increase monthly submachine gun output from 135,000 units to 350,000 weapons. Design details Operating mechanism
The PPS was an automatic blowback-operated weapon that fired from an open bolt. The bolt was cylindrical in shape and contained a spring-loaded claw extractor, which pulled the empty case out of the chamber and passed it to the fixed ejector housed in the lower receiver. The charging handle was integral to the bolt and was located on the right side; it would reciprocate during firing. The PPS originally had a fixed but replaceable firing pin, held in place by the extractor spring. Pulling the trigger released the bolt, which moved forward, stripping a round from the magazine, chambering it and striking the primer in one motion. Features
The PPS had a trigger mechanism that allowed only fully automatic fire and a manual safety that secured the against accidental discharges. When in the "safe" position (engaged by sliding a metal bar forward of the trigger guard), both the bolt and trigger were disabled. The weapon was fed from curved 35-round box magazines that did not interchange with magazines used in the PPSh-41; nor could the gun use drum magazines. It was chambered for the 7.62x25mm Tokarev M1930 pistol cartridge.
The submachine gun's rifled barrel (with 4 right-hand grooves) was mounted in a perforated sheet metal heat guard and was equipped with a crude muzzle brake, consisting of a strip of steel bent into a U-shape that deflected exiting muzzle gases to the sides and backwards, thus compensating for recoil.
A folding stock was attached to the receiver with a spring-loaded catch button on the left side. The stock folded up and over the receiver top cover and the weapon could be fired in this arrangement. The submachine gun also had a pistol grip but was not provided with a forward grip as the magazine well was intended to fulfill this role. The PPS was usually supplied with two magazine pouches, an oil bottle, bore brush and sling. Sights
The PPS was fitted with a set of open-type iron sights consisting of a fixed front post protected from impact by two sheet metal plates and a flip rear sight with two pivoting notches, for firing at 100 and 200 m. Variants
A Chinese-made Type 54 variant.
Towards the middle of 1943 the modernized PPS-43 entered production; efforts were made to improve manufacturing and safety. The ventilated heat shield was integrated with the upper receiver cover, both the barrel and shoulder stock were shortened, the stock's locking mechanism was simplified, the casing ejector was moved to the rear of the recoil spring guide rod, the magazine well angle was increased in the receiver in order to enhance feeding reliability and the safety was improved to block the trigger and lock the bolt in either the open or closed positions.
Outside of the Soviet Union, the PPS was license-produced in Poland (from 1948) and the People's Republic of China (Type 54). Several variants were made based on the PPS-43, including a training version built in Poland, chambered for the .22 Long Rifle rimfire cartridge (fed using standard PPS-43 magazines but modified with an aluminum reduction insert) and the Finnish M/44 submachine gun. The M/44 was a modified copy with minor differences to the original PPS-43. It fired the 9x19mm Parabellum pistol round and accepted box magazines from the Carl Gustav SMG) or drum magazines from the Suomi M/31.
In the early 1950s Poland developed a modified version of the PPS-43, known as the PPS wz. 1943/1952 that replaced the folding metal stock with a fixed wooden buttstock. This was mounted to the receiver end plate using two inserts and the receiver take-down hook was bent downwards to accommodate the change. The buttstock has a compartment carved inside of it that contains a standard cleaning kit; the side of the butt has a sling loop. This modification was meant to increase the accuracy of the PPS submachine gun, but minimal gains in accuracy were offset by the increase in weight and size of the PPS wz. 43/52 in comparison to the original PPS-43. Between 19521955, the ucznik Arms Factory in Radom built approximately 111,000 PPS submachine guns.
In 1953, the West German border guards (Bundesgrenzschutz) adopted the Spanish-made DUX-53 and DUX-59 submachine guns, copied from the PPS-43 by way of the Finnish M/44. The Vietnamese K-50M also borrowed elements from the PPS design, while in the 1950s, Hungary combined basic features of the PPS-43 with the bolt safety of the PPSh-41 in the unsuccessful M53. Users
 Cambodia
 China: Made unlicensed copies under the designation Type 54.
 Finland
 North Korea
 Poland: First acquired in 1943 and used on the Eastern Front by the Polish Peoples Army. In 1946 production of the submachine gun was undertaken at the H. Cegielski factory in Pozna. Later, production was extended to the ucznik Arms Factory and Wifama manufacturing conglomerate and would continue until 1970. The weapon remained in service with the armed forces and police units until 1980, when it was replaced by the AKM assault rifle.
 Soviet Union
 Ukraine
 Vietnam See also
List of Russian weaponry References
^ a b c d e f g h i j k l m n Woniak, Ryszard: Encyklopedia najnowszej broni palnejom 3 M-P, page 272. Bellona, 2001.
^ Woniak, 273 Bibliography
Ezell, Edward Clinton (1986). The AK47 Story: Evolution of the Kalashnikov Weapons. Harrisburg, PA: Stackpole Books. ISBN 978-0811709163. 
(Polish) Woniak, Ryszard (2001). Encyklopedia najnowszej broni palnejom 3 M-P. Warsaw, Poland: Bellona. ISBN 83-11-09149-8.  External links
Modern Firearms
v  d  e
Soviet infantry weapons of World War II
Side-arms
TT pistol Nagant M1895
Rifles & carbines
AVS-36 SVT-40 Mosin-Nagant
Submachine guns
PPD-40 PPSh-41 PPS
Grenades
F1 RGD-33 RG-41 RG-42 M1914/30 RPG-40 RPG-43 RPG-6
Machine guns & other larger weapons
M1910 Maxim DS-39 DP SG-43 Goryunov DShK PTRD PTRS ROKS-2/ROKS-3
Cartridges used by the USSR during WWII
7.62x25mm Tokarev 7.62x38mmR 7.62x54mmR 12.7x108mm 14.5x114mm Categories: 7.62 mm firearms | Cold War infantry weapons | Submachine guns | World War II Soviet infantry weapons | World War II submachine guns
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Irwin® - Bolt Extractor Sets $167.4 Extractor sets with powerful grip. 13 PIECE BOLT EXTRACTORSET 1/4-3/4" W/3/8" DRV. Extractor and sets for flat wrench, socket and adjustable wrench usage. Includes 18 sizes starting 1/4"-1" standard and metric. Hand tools with left hand spiral flute for greater grip power. Created with high carbon steel. 1/4in minimum and 3/4in maximum size. 3/8in drive size. Weighs 1.74lbs. 13 per set.

Irwin Irwin 5pc Bolt Extractor 394001 $28.12 5pc bolt extractor 5-piece bolt-grip set Removes rounded off, painted over, damaged and rusted over nuts, and bolts Set includes 3/8?, 7/16?/11mm, 1/2?, 9/16?/14mm, and 5/8?/16mm Can be used on a 3/8? ratchet, impact wrench, or air ratchet Base of socket is hex to allow use of flat wrenches, box wrenches, adjustable wrenches, or locking pliers Fits both metric and standard sized nuts and bolts 6T of high-carbon steel-grip tight to remove the nut or bolt Storage case Brand #: Irwin 394001 UPC: 024721012579 Keywords: bolt extractor set 5pc grip nut remover

Fastener Extractor Set $44.99 BikeMaster Fastener Extractor Set Did you just round off a bolt or nut and wondering how to get it loosened. Set down the files, hack saws and cutting torches and pick up a BikeMaster 8-Piece?Fastener Extractor Set. These handy tools grip the head of rounded fasteners and backs them right out. These extractor tools are the perfect "Plan B" to salvage parts and save money by doing repairs your self. Having BikeMaster's Extractor set in your garage, tool box, race trailers, or pit stops will give you the ability and confidence to tackle any project. Use when a bolt or nut is rounded off Have a very sharp and hardened Left Hand Helix inside Grips the head of the bolt and as you rotate the bolt to undo it, the extractor tightens The more you push, the tighter it gets, until the extractor twists the bolt out 1/4" hex drive 8-Piece set

Irwin Irwin Bolt And Screw Extractor 394100 $28.37 Bolt and screw extractor 7-piece power bolt grip set Grips both metric and SAE - Universal Lobular Design fits both sizes Black oxide finish with white markings - prevents rust and easy-to-read markings Maximum gripping power - reverse spiral flutes are designed to bite down Removes rounded off, painted over, damaged, and rusted over nuts and bolts Shear-resistant shank - high-carbon steel shank is larger than most fastener shanks and resists torsional shear 1/4? hex shank for use with cordless drills, impact drivers, corded drills, and nut runners Power groove allows for use with quick change adapters Includes sizes: 3/16?, 1/4?, 5/16?, 3/8?, 10mm, 7/16?, 1/2?, and plastic case Brand #: Irwin 394100 UPC: 024721037633 Keywords: nut extractor bolt & screw set 7pc remover

Hanson 10mm Bolt Extractor. Each $13.36 Manufacturer: Hanson. Each. Features and Benefits: When you are faced with a rounded-off, rusted tight or painted over bolt, bolt extractors will break it free Reverse spiral flutes are designed to bite down to provide maximum gripping power High carbon

Proto Screw Extractor 3/16". Each $5.34 Manufacturer: Proto. Each. Bolt Head Customers also search for: Discount Screw Extractor 3/16", Buy Screw Extractor 3/16", Wholesale Screw Extractor 3/16", 662679531607, 9522, Screw and Stud Extractors

Proto Screw Extractor 15/64. Each $7.18 Manufacturer: Proto. Each. Drive into end of broken pipe or fitting Use tap holder or wrench on extractor to turn out broken part Size stamped on extractor refers to drill bit size to be used with that extractor Bolt Diameter = 15/64 in Length = 2 15/16

6 PCS Damaged Screw Broken Bolt Extractor Set $11.99 Description:This Screw Extractor Set makes removing broken screws, bolts and studs easy!Bolt Extractor Set made from high grade heat treated steel, rust resistant.Easy to use with quick connect chucks and hand drills.Applications of these Broken Bolt Extractor are infinite! Automobiles, toys, furniture, appliances and more!They are easily from wood, metal or plastic and removes screws made of any alloy, including soft screws.There are 6 piece Screw Extractor: 1/8", 1/4", 5/16", 7/16", 9/16" and 3/4".Weight: 222gPackage Contains:6 x Screw Extractors

Hanson HAN53904 10mm Bolt Extractor $26.91 3/8 Square drive for use with hand ratchets impact wrenches and air ratchets hexagonal flats for use with flat wrench pliers adjustable wrench sockets or ViseGrip locking pliers. When you are faced with a roundedoff rusted tight or painted over bolt bolt extractors will break it free. Reverse spiral flutes are designed to bite down to provide maximum gripping power. High carbon steel ensures longer life and greater durability. Universal lobular design fits all types of fasteners. Removes bolts sizes: 10mm. Drive Size: 3/8 . Hex Size: 3/8 . Socket Size: 10mm.

Facom Stud Extractor 8 mm Roller. Each $25.4 Manufacturer: Facom. Each. Extractor Screw Diameter = 9/16 in [Max] Drive Size = 1/2 in Bolt Length = 2 3/4 in Head Customers also search for: Discount Stud Extractor 8 mm Roller, Buy Stud Extractor 8 mm Roller, Wholesale Stud Extractor 8 mm Roller, FA-

5 PCS Broken Bolt Screw Extractor Remover Set $9.99 Description:This Screw Extractor Set makes removing broken screws, bolts and studs easy!Bolt Remover made from high grade heat treated steel, rust resistant.Easy to use with quick connect chucks and hand drills.Applications of these Broken Bolt Extractor are infinite! Automobiles, toys, furniture, appliances and more!They are easily from wood, metal or plastic and removes screws made of any alloy, including soft screws.There are 5 piece Screw Extractor: 1/8", 1/4", 5/16", 7/16", 9/16".Weight: 118gPackage Contains5 x Screw Extractors

Irwin 1/2" Bolt Extractor w/3/8" Drive. Box of 5 $37.22 Manufacturer: Irwin. Box of 5. Left hand spiral flute for gripping power Can be used with flat wrench, adjustable wrench or socket Made with high carbon steel Drive Size = 3/8 in Shank Size = 1/2 in Bolt Head Type = Bolt Extractor Customers also search f

Irwin 11/16" Bolt Extractor w/3/8" Drive. Box of 5 $51.67 Manufacturer: Irwin. Box of 5. Left hand spiral flute for gripping power Can be used with flat wrench, adjustable wrench or socket Made with high carbon steel Drive Size = 3/8 in Shank Size = 11/16 in Bolt Head Type = Bolt Extractor Customers also search

Proto Screw Extractor 1/8". Each $5.31 Manufacturer: Proto. Each. Drive into end of broken pipe or fitting Use tap holder or wrench on extractor to turn out broken part Size stamped on extractor refers to drill bit size to be used with that extractor Bolt Diameter = 1/8 in Length = 2 3/8 in H

Proto Screw Extractor 5/16". Each $7.39 Manufacturer: Proto. Each. Drive into end of broken pipe or fitting Use tap holder or wrench on extractor to turn out broken part Size stamped on extractor refers to drill bit size to be used with that extractor Bolt Diameter = 5/16 in Length = 3 in Head

Proto Screw Extractor 15/32". Each $13.87 Manufacturer: Proto. Each. Drive into end of broken pipe or fitting Use tap holder or wrench on extractor to turn out broken part Size stamped on extractor refers to drill bit size to be used with that extractor Bolt Diameter = 15/32 in Length = 3 7/8 in

Proto Screw Extractor 3/8". Each $7.73 Manufacturer: Proto. Each. Drive into end of broken pipe or fitting Use tap holder or wrench on extractor to turn out broken part Size stamped on extractor refers to drill bit size to be used with that extractor Bolt Diameter = 3/8 in Length = 3 1/4 in H

Proto Screw Extractor 9/16". Each $14.13 Manufacturer: Proto. Each. Drive into end of broken pipe or fitting Use tap holder or wrench on extractor to turn out broken part Size stamped on extractor refers to drill bit size to be used with that extractor Bolt Diameter = 9/16 in Length = 4 1/2 in

Proto Screw Extractor 21/32". Each $16.4 Manufacturer: Proto. Each. Drive into end of broken pipe or fitting Use tap holder or wrench on extractor to turn out broken part Size stamped on extractor refers to drill bit size to be used with that extractor Bolt Diameter = 21/32 in Length = 4 7/8 in

Proto Screw Extractor 13/16". Each $19.07 Manufacturer: Proto. Each. Drive into end of broken pipe or fitting Use tap holder or wrench on extractor to turn out broken part Size stamped on extractor refers to drill bit size to be used with that extractor Bolt Diameter = 3/4 in Length = 5 3/8 in H

Proto Screw Extractor 1-1/16". Each $22.33 Manufacturer: Proto. Each. Drive into end of broken pipe or fitting Use tap holder or wrench on extractor to turn out broken part Size stamped on extractor refers to drill bit size to be used with that extractor Bolt Diameter = 1 1/16 in Length = 5 1/2 i

HeliCoil Drill-Out? Power Bolt Extractor - 4 Piece Kit $60.95 Drill-Out?is a drill bit and extractor in one. The drill bit is made from high quality heat treated steel - allows you to drill into even Grade8 and stainless steel bolts. The extractor is made from hard,flexible die steel which allows it to bite into any bolt or stud without slippng or stripping.Features:? Uses the power of your drill to extract the bolt? Only requires shallow drilling depth so there is less chance of going off-center and less drilling time? Specially designed drill tip will not walk or wander? Carrying case included? Includes four sizes: 1/4''-6mm, 5/16''-8mm, 3/8''-10mm and 1/2''-12mm

HeliCoil Drill-Out Power Bolt Extractor - 4 Piece Kit $52.89 Drill-Out is a drill bit and extractor in one. The drill bit is made from high quality heat treated steel - allows you to drill into even Grade8 and stainless steel bolts. The extractor is made from hard,flexible die steel which allows it to bite into any bolt or stud without slippng or stripping. Uses the power of your drill to extract the bolt Only requires shallow drilling depth so there is less chance of going off-center and less drilling time Specially designed drill tip will not walk or wander Carrying case included. Includes four sizes: 1/4 inch-6mm, 5/16 inch-8mm, 3/8 inch-10mm and 1/2 inch-12mm

5 Piece Damaged Screw Remover Broken Bolt Extractor Kit $9.99 Description:This Screw Extractor Kit makes removing broken screws, bolts and studs easy!These Damaged Screw Remover made from high grade heat treated steel, rust resistant.Easy to use with quick connect chucks and hand drills.Applications of these Broken Bolt Extractor are infinite! Automobiles, toys, furniture, appliances and more!They are easily from wood, metal or plastic and removes screws made of any alloy, including soft screws.5 Piece Bolt Remover Sizes: 1/8"-1/4", 1/4"-5/16", 5/16"-7/16", 7/16"-9/16", 9/16"-3/4".Weight: 125gPackage Contains:5 x Screw Extractors

Spiral Screw Extractor Kit $14.95 Removes screws, broken studs, set screws, pipe and Alemite fittings. Drill a hole in the screw and place extractor into hole. Tap lightly with hammer and turn counterclockwise with tap wrench to remove the screw. Spiral blades grip screw. Extractors fit the following Screw, Bolt or Stud Size: No. 12 to 5/16'', 5/16'' to 7/16'', 7/16'' to 9/16 and 9/16'' to 3/4''.By K-D Tools.

Bolt-Grip 5 Pc. Bolt Extractor Set $36.95 ? Reverse spiral flutes are designed to bite down providing maximum gripping power. ? High carbon steel ensures longer life and greater durability. ? Universal design fits all types of fasteners. ? 3/8'' square drive for use with hand ratchets, impact wrenches, and air ratchets; hexagonal flats for use with wrenchs, pliers, and sockets. ? Set includes: 3/8'', 7/16''(11mm), 1/2'', 9/16''(14mm), 5/8''(16mm) in a molded case. By Vise Grip.

Irwin Irwin #1 Screw Extractor 53701 $2.08 #1 screw extractor Spiral screw extractor and drill bit Extractor is packaged with correct size high speed steel drill bit for fast, clean drilling and removal of broken studs, bolts, and screws No. 1 Brand #: Irwin 53701 UPC: 042526537011 Keywords: high speed steel bit screw remover & bolt extractor drill broken damaged spiral

Irwin Irwin #2 Screw Extractor 53702 $2.22 #2 screw extractor Spiral screw extractor and drill bit Extractor is packaged with correct size high speed steel drill bit for fast, clean drilling and removal of broken studs, bolts, and screws No. 2 Brand #: Irwin 53702 UPC: 042526537028 Keywords: high speed steel bit screw remover & bolt extractor drill broken damaged spiral

Irwin Irwin #3 Screw Extractor 53703 $2.57 #3 screw extractor Spiral screw extractor and drill bit Extractor is packaged with correct size high speed steel drill bit for fast, clean drilling and removal of broken studs, bolts, and screws No. 3 Brand #: Irwin 53703 UPC: 042526537035 Keywords: high speed steel bit screw remover & bolt extractor drill broken damaged spiral

Irwin Irwin #4 Screw Extractor 53704 $3.66 #4 screw extractor Spiral screw extractor and drill bit Extractor is packaged with correct size high speed steel drill bit for fast, clean drilling and removal of broken studs, bolts, and screws No. 4 Brand #: Irwin 53704 UPC: 042526537042 Keywords: high speed steel bit screw remover & bolt extractor drill broken damaged spiral

Irwin Irwin #5 Screw Extractor 53705 $5.07 #5 screw extractor Spiral screw extractor and drill bit Extractor is packaged with correct size high speed steel drill bit for fast, clean drilling and removal of broken studs, bolts, and screws No. 5 Brand #: Irwin 53705 UPC: 042526537059 Keywords: high speed steel bit screw remover & bolt extractor drill broken damaged spiral

Irwin Irwin #6 Screw Extractor 53706 $9.98 #6 screw extractor Spiral screw extractor and drill bit Extractor is packaged with correct size high speed steel drill bit for fast, clean drilling and removal of broken studs, bolts, and screws No. 6 Brand #: Irwin 53706 UPC: 042526537066 Keywords: high speed steel bit screw remover & bolt extractor drill broken damaged spiral

Alden Alden 6pc Extractor Kit 6280P $31.37 6pc extractor kit Kit includes No. 1 and No. 2 Grabit damaged screw extractors, No. 3 and No. 4 microGrabit damaged screw and damaged bolt extractors, and 5/16? and 3/8? Drill-out damaged bolt extractors This kit is perfect for the tool box and will remove almost any type of damaged fastener that is come across on the job site or in the home Brand #: Alden 6280P UPC: 727708062801 Keywords: drill out tool micro grabit bolt extractor damaged screw remover kit 6pc extrct

HeliCoil Micro Drill-Out? Power Bolt/Screw Extractor- 4 Piece Kit $54.95 Drill-Out?is a drill bit and extractor in one. The drill bit is made from high quality heat treated steel - allows you to drill into even Grade8 and stainless steel bolts. The extractor is made from hard,flexible die steel which allows it to bite into any bolt or stud without slippng or stripping.Features:? Uses the power of your drill to extract the bolt? Only requires shallow drilling depth so there is less chance of going off-center and less drilling time? Specially designed drill tip will not walk or wander? Includes (4) Micro Drill-Outs? : #5, #6 or M3; #8 or M4; #10, #12 or M5; 1/4'' or M6

Great Neck 5 Pc. Screw Extractor Set $8.99 5 Pc. Screw Extractor Set includes: Extractor Size Use Drill Size For Screw & Bolt Screw Standard Pipe Size #1 no. sec 1c 1/16''-5/64'' 3/16''-1/4'' - #2 no. sec 2c 3/32''-7/64'' 1/4''-5/16'' - #3 no. sec 3c 9/64''-5/32'' 5/16-7/16'' - #4 no. sec 4c 7/32''-1/4'' 7/16''-9/16'' - #5 no. sec 5c 17/64''-19/64'' 9/16''-3/4'' 1/8''-1/4''

Irwin Irwin 6pc Screw Extractor Set 53700 $8.36 6pc screw extractor set 6-piece set Designed to remove broken studs, bolt, and screws Aggressive left hand spiral filters are designed to embed themselves deeper into the metal as you turn the tool, so as the fastener resistance increases, the extractors grip increases Extractor size and recommended drill bit size are etched on each tool High speed steel drill bit ensures, fast, clean drilling Set includes spiral flute screw Extractors in sizes: Ex-1, Ex-2, Ex-3, and HSS drill bits in sizes 5/64, 7/64, and 5/32 Brand #: Irwin 53700 UPC: 024721537003 Keywords: screw & bolt extractor remover broken damaged high speed steel bit spiral

Hanson 9 Piece Metric Bolt Extractor Set. Each $80.23 Manufacturer: Hanson. Each. Features and Benefits: When you are faced with a rounded-off, rusted tight or painted-over bolt, bolt extractors will break it free Reverse spiral flutes are designed to bite down to provide maximum gripping power High carbon

Irwin Industrial Tool Co. HA53605 Straight Screw Extractor 5ST $19.31 Extractor will not expand material being removed resulting in easier removal. Ideal for thinwalled materials such as pipe and fittings. Constructed of high carbon steel for strength under stressful conditions. Extractor size and recommended drill bit size are etched on each extractor. Use Drill Size: 3/8 in. Bolt/Screw Cap.: 5/8 in 3/8 in NPT 3/8 in BSP 16 mm. Used With: TR98 Tap Wrench. Country of Origin: US. Hazmat: No.

HeliCoil Micro Drill-Out Power Bolt/Screw Extractor- 4 Piece Kit $46.41 Drill-Out is a drill bit and extractor in one. The drill bit is made from high quality heat treated steel - allows you to drill into even Grade8 and stainless steel bolts. The extractor is made from hard,flexible die steel which allows it to bite into any bolt or stud without slippng or stripping. Uses the power of your drill to extract the bolt Only requires shallow drilling depth so there is less chance of going off-center and less drilling time Specially designed drill tip will not walk or wander Carrying case included. Includes (4) Micro Drill-Outs: 5, 6 or M3; 8 or M4; 10, 12 or M5; 1/4 inch or M6