Spiral Step Drill Bit High Speed Steel Cobalt Hex Shank Steps Drills M35 9 Size 4?12mm

About this item

• Feature: 1. M35 Grade Cobalt Steel: Made of strong M35 grade cobalt steel, with 5percent cobalt added to form a hardened heat resistant alloy with longer life 2. 9 Size Ranges: With 9 size ranges from 4mm to 12mm, you can use one drill bit to drill up to 9 holes of different diameters, saving your time and effort to replace the drill bit 3. Application: Very suitable for drilling new holes or expanding existing holes on stainless steel, and softer metals such as iron, brass, copper, aluminum, etc. 4. Greater Torsion: This 14in hex shank drill bit can be clamped tighter by compatible drill bits and screwdrivers to achieve greater torsion 5. Smooth Chip Removal: This is a M35 cobalt containing step drill, which can open holes quickly, cut faster, and remove chips smoothly. Specification: Item Type: Spiral Step Drill Bit Material: High Speed Steel Containing Cobalt Purpose: Spiral Step Drill Shank Type: Hex Shank Shank Diameter: 14in Drilling Diameter: Approx. 412mm 0.160.47in. Package List: 1 x Spiral Step Drill BitM35 Grade Cobalt Steel: Made of strong M35 grade cobalt steel, with 5percent cobalt added to form a hardened heat resistant alloy with longer life 9 Size Ranges: With 9 size ranges from 4mm to 12mm, you can use one drill bit to drill up to 9 holes of different diameters, saving your time and effort to replace the drill bit Application: Very suitable for drilling new holes or expanding existing holes on stainless steel, and softer metals such as iron, brass, copper, aluminum, etc. Greater Torsion: This 14in hex shank drill bit can be clamped tighter by compatible drill bits and screwdrivers to achieve greater torsion Smooth Chip Removal: This is a M35 cobalt containing step drill, which can open holes quickly, cut faster, and remove chips smoothly.