JIANTAI 4Pcs Damaged Screw Extractor Speed Out Drill Bits Tool Set Broken Bolt Remover SpeedOut Damaged Screw Extractor & Bolt Extractor Set

Quantity: 4pcs(1#, 2#, 3#, 4#).1 # disembowelled diameter: 3-5 mm.2 # disembowelled diameter: 4-8 mm.3 # disembowelled diameter: 5-10 mm.4 # disembowelled diameter: 6-12 mm.Material: alloy steel (S2).Hardness: 58 °-- 60 °.Made of durable hardened steelEasy to use, just two easy steps!Screw head scratching force ber, better.Removes any stripped screw in 10 seconds or less!The 4 piece screw extractor set works with any drill and any screw size or bolt.Works on wood and machine screws as well as philips, flat, hex, or painted over screws.Application: suitable for electric tools with chucks or adapters, extract damaged screws quickly and easily.Package included:1 x Set (4pcs) Screw Remover with black box