[NEVER USED] 10mm-45mm Titanium Coated HSS Steel Spiral Grooved Step Cone Drill Bit for Aluminum Copper Stainless Steel..

Product never used, packaging damaged during transport. Unopened product, repackaged in our warehouses, in perfect working condition, warranty available.

Step Sizes - 10, 15, 20, 25, 30, 35, 40, 45 mm. For workpieces with a hardness below 25° - Carbon steel, thin iron plate, insulation board, PVC board, wood board, less than 5 mm thick. Anti-slip - Triangular shank: diameter - 12 mm; length - 25 mm. Cutting: More stable and uniform cut - Double-flute spiral groove design automatically chamfers the hole to clean the drill bit. Chamfering, hammering, drilling, or enlarging holes - Step drill bits can be used for chamfering, hammering, drilling, or enlarging holes. Widely used for cutting holes in a variety of materials such as plate, aluminum, insulation board, PVC, and wood. Specifications: Color: Black (as shown) Material: High-speed steel. Scope: Thin iron plate, aluminum, insulation board, PVC board, 4 mm thick, and wood. Type: 10-45 mm (10, 15, 20, 25, 30, 35, 40, 45 mm), Shank: 25 x 12 mm, Overall Size: 45 x 100 mm. Package includes: 1 x 10-45 mm twist drill bit