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2. Screw extractor - Wikipedia

   en.wikipedia.org/wiki/Screw_extractor

   Square flute screw extractors. Straight fluted extractors may come in a kit that also has associated drills, drill bushings, and special nuts, or be sold individually. The screw is drilled out with the appropriate drill and drill bushing. The extractor is then hammered into the hole with a brass hammer, because a steel hammer is more likely to ...

3. Accuracy International Arctic Warfare - Wikipedia

   en.wikipedia.org/wiki/Accuracy_International...

   The bolt construction is significantly revised, allowing the bolt to be field stripped by hand and allowing the more complex removal of the bolt head from the bolt body with simple hand tools. Calibre changes can be accomplished by the change of a complete bolt assembly or a calibre specific bolt sleeve, which is more laborious.

4. M1903 Springfield - Wikipedia

   en.wikipedia.org/wiki/M1903_Springfield

   Springfield began work on creating a rifle that could handle higher loads around the turn of the 20th century. The Springfield Model 1901 prototype combined the Krag–Jørgensen's cock-on-opening bolt, 30-inch barrel, magazine cutoff, stock and sights with the Mauser M1893's dual locking lugs, external claw extractor, and staggered-column ...

5. Drill bit - Wikipedia

   en.wikipedia.org/wiki/Drill_bit

   Screw extractors are essentially left-hand bits of specialized shape, used to remove common right-hand screws whose heads are broken or too damaged to allow a screwdriver tip to engage, making use of a screwdriver impossible. The extractor is pressed against the damaged head and rotated counter-clockwise and will tend to jam in the damaged head ...

6. AK-74 - Wikipedia

   en.wikipedia.org/wiki/AK-74

   The AK-74 stripped down to its major components ... the 5.45×39mm AK-74 bolt has a larger extractor claw than the 7.62×39mm AKM ... An AK-74M universal upgrade kit ...

7. PPS submachine gun - Wikipedia

   en.wikipedia.org/wiki/PPS_submachine_gun

   The PPS is an automatic blowback-operated weapon that fires from an open bolt. [1] The bolt is cylindrical in shape and contains a spring-loaded claw extractor, which pulls the empty case out of the chamber to be ejected. The ejector is mounted at the head of the recoil spring guide rod, which runs through a hole in the bolt.