ITEM NAME:Damaged Screw Extractor Set, Stripped Screw Extractor Tool, Broken Bolt Rem B4K7 Damaged Screw Extractor Set, Stripped Screw Extractor Tool, Broken Bolt Rem B4K7 HIGH QUALITY- This damaged screw removal tool set is made from high hardness HHS 4341 (the hardness is 63-64hrc)alloy steel, durable and long lasting MULTI-PURPOSE- The stripped screw remover kit includes 4 different sizes of bits which can work with any drill and extract screws which are bigger than #1. Great for removing stripped, broken head, rusted, unscrew, free-spinning and deck screws PRECISION AND SPEED-UP- One bit are with two different heads, one is used to drill a hole in the middle of the snapped-head fastener with the drill end, the other is used to extractor the screws or bolt. This special design helps you grab and remove the screws precisely and easily EASY TO USE- Two easy steps, just need a drill, no other tools need, you can easily remove the screws, please make sure to run the drill in reverse during the process There are 4 pieces in the damaged screw fix remover set, can work with any drill, screws and bolt size:#4 bit is 8.75mm, #3 bit is 6.35mm, #2 bit is 6.35mm, #1 bit is 6.35mm, Material: alloy steel Color: Color photo Package Contents:1x 4 pieces broken screw remover 1x storage box Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.