Features Made of S2 high‑grade alloy steel, integral induction hardening with strong wear resistance Hardness reaches up to HRC58‑62 degrees, sturdy and durable Screwdriver bits bring professional, fast and convenient drill efficiency S2 alloy steel bits possess strong magnet, which is more practical to use Anti slip cross drill bit possess more stable performance, not easy to slide Feature: 1. Made of S2 high‑grade alloy steel, integral induction hardening with strong wear resistance 2. Hardness reaches up to HRC58‑62 degrees, sturdy and durable 3. Screwdriver bits bring professional, fast and convenient drill efficiency 4. S2 alloy steel bits possess strong magnet, which is more practical to use 5. Anti slip cross drill bit possess more stable performance, not easy to slide Specification: Item Type: Screwdriver bits Material: S2 high-grade alloy steel Handle Type: Hex handle Total Length: Approx. 127mm / 5in Purpose: Non-accuracy maintenance Package List: 10 x Screwdriver Bits Package List 10 x Screwdriver Bits