Features: With the 6 extractors bits included in this set, you will be able to almost any damaged, stripped, rusted or rounded screw or bolt. This damaged screw Removers tool kit is selected from High Speed Steel HSS 4341, it's durability and easily to remove any damaged screws. Drill a hole with a cutting size using the right size screw extractors and easily remove the screw or bolt using the removal tool. High speed steel, better hardness and durability than others, buy with confidence and complete. The Damaged Screw Extractors works with any drill on any screw or bolt.With our dynamic set of extractors drill bit, removing stripped, rusted or rounded screws & bolts have never been easy or more efficient. Specifications: Component:High Speed Steel Color:Black/Silver Size:Approx.51mm/2inch Package Includes: 6Pcs Damaged Screw Extractor note: 1.Please allow 1-2cm errors due to manual measurement, making sure that you not mind before order. 2.Due to the differences between different monitors, the picture may not reflect the actual of the item.