- 【Product Configuration】5 inch size triangle shank titanium-plated step drills, 1 gold center punch. 5 pcs step drill bits enable 50 sizes – each step drill bit can drill several bore diameters. It can work as 50 pcs twist drill bits
- 【6PCS- 50 Step Sizes】 Sided cutting and cutting X-shaped openings design ensures faster and smoother; 3 surface of the shank designed to prevent slippage drill chuck, can penetrate wood, sheet metal, steel and other surfaces
- 【HSS with Titanium Coating】 Industry grade fully ground high speed steel with titanium coating ensures strong wear-resistance and durability.
- 【EASY TO STORE】 Set includes a sturdy blow molded organizing case for secure storage and easy carrying
- 【Wide application】 High-speed steel 4241, suitable for workpieces whose thickness is less than 5MM and temperature is below 25°, such as carbon steel, iron plate and steel plate.
