Material The screw extractor is made of fast steel 4241 (HSS 4241) and is suitable for removing bare screws and broken bolts. Easy to use: Remove the screws and bolts bare or damaged quickly and easily. You can easily remove any stripped screws in 10 seconds or less. Large Application: Works with any drill and any screw or bolt size. Kit of 5 screw extractors for all screw sizes or bolts. Usage: Only 3 simple steps. 1. Pierz 2. FLIP BIT, 3. Extract Package content 5 different sizes - (0 , 1 , 2 , 3 , 4 ) in a set of screw extractors for most drills, screws or bolts, meet your different needs. The screw extractor kit is supplied with a plastic box for easy transport. Features: High quality product. Fast, convenient, disassemble The screws, the bugs. The speed can be modified in the opposite direction of rotation of the drill in conjunction. 1 lot (5 pieces) head Remove the screw case, also Known as a double-headed double-head screw extractor. Usages: special tools to remove the wood in the head have been broken wooden screws, studs to give a baking screw head, easy to use to take another head screw. Features: Color: Silver. Type: 0 , 1 , 2 , 3 , 4 Material: HSS 4241 Scope: 2-3 mm, 3-5 mm, 4-8 mm, 5-10 mm, 6-12 mm. Main function: Remove the triangular valves quickly and easily, the triangular valves, the ducts of water, faucets, mechanical broken wires, etc. Color of the box: black. Material of the box: plastic. Dimensions of The box: about 95 x 67 x 18 mm. Weight: 131 g. Content: 5 screw extractors.