[NEVER USED] 3PCS Step Drill Bit Set, HSS Stainless Steel, 4-12/20/32mm, Titanium Conical Triangle, with Hex Shank, For Screwdriver on Steel, Brass, Wood, Plastic

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

[Saving time and labor, efficient and fast] The HSS conical drill bit is made of high-speed steel, which reduces heat and friction, cools quickly, and automatically removes debris from the hole during drilling. The spiral design prevents slippage, making drilling easier and more efficient. [Three sizes to meet your needs] 4mm-12mm, 4mm-20mm, 4mm-32mm; you can choose different drill bits according to your requirements. [Wide range of uses] The product can process thin iron sheets, aluminum, insulation boards, PVC panels, wood panels, and other materials up to 3mm thick. [Convenient carrying nylon bag] The product comes with a nylon fabric bag, which provides good storage and protection. No need to worry. of loss and wear caused by the small size of the product. Features: 1. Laser marking makes dimensions clearer; 2. High-speed steel for longer service life; 3. Three-sided shank prevents slippage in the drill chuck; 4. Double cutting blade design allows for faster and easier cutting; 5. X-type opening design for easy removal of cutting debris during drilling; 6. Added cobalt reduces friction and lasts longer than those without cobalt; 7. Sharpness and titanium coating ensure easy cutting through most sheet metal, plastics, and other materials. Specific Information Size 1: Length 7cm, Diameter (mm): 4 to 12: 4, 5, 6, 7, 8, 9, 10, 11, 12. Size 2: Length 7cm, Diameter (mm): 4 to 20: Size 3: Length 10cm, Diameter (mm): 4 to 32: 4, 6, 8, 10, 12, 14, 16, 18, 20, 22, 24, 26, 28, 30, 32