[NEVER USED] HSS Step Drill Bit 6-60mm Spiral Slotted Conical Milling Cutter 12 Steps For Screwdriver Drilling on Steel Brass Wood Plastic, etc

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

Step Drill Bits Size: 6-60mm (12 steps: 6, 10, 15, 20, 25, 30, 35, 40, 45, 50, 55, 60mm). Shank Diameter: 13mm. Step Drill Bit Material: HSS 4241. Application: Suitable for workpieces with a hardness below 25°, such as carbon steel, sheet metal, insulation boards, PVC panels, planks, and wood. Workpiece thickness under 5mm. Note: Use water cooling during drilling to extend the drill bit's lifespan. Recommended drilling speed 250-400 rpm. Spiral fluted slot: 135. Split point and double flute design for self-centering and deburring; the spiral flute helps remove chips during drilling. Features: 6-60mm pitch drill bit suitable for workpieces with a hardness of less than 25°, such as carbon steel, sheet metal, insulation boards, PVC boards, planks, and wood; plate thickness under 5mm. Use cooling water during drilling to extend drill bit life. Recommended drilling speed 250-400 rpm. Spiral cutting flute: 135. Double point and double flute design for self-centering and deburring. The spiral flute helps clear chips during drilling. Unique step design; one drill bit can be used to open holes of different sizes, meaning it's equivalent to a drill set. High-speed steel tools are good for most general applications, offering a combination of hardness and toughness for wear resistance. Multifunctional: deburring, chamfering, expanding holes. Material: HSS 4241 steel. Type: Step Drill Bit. Shank Type: Round shank Ф13mm. Quantity: 1 piece. Color: Silver. Item Size: Ф6-60mm: 12 steps (6mm, 10mm, 15mm, 20mm, 25mm, 30mm, 35mm, 40mm, 45mm, 50mm, 55mm, 60mm). Package includes: 1 x 6-60mm HSS Step Drill Bit