MARVEL Titanium Nitride Aluminum Coated Step Drill (Hexagonal Shank) MSB-T12 1 piece

Catalog number: MSB-T12 Features: *Titanium aluminum nitride coating provides outstanding wear resistance and heat resistance. *Cutting chips and powder are less likely to adhere, improving workability. Applications: *Cutting materials: Steel plate (4.0 mm or less), stainless steel (1.6 mm or less), aluminum, copper, plastic, etc. Specifications: ●Step width (mm): 4.5 (5.5) ●Number of steps (steps): 9 ●Shank shape: hexagonal shaft ●Shank diameter (mm): 6.35 across flats ●Drilling dimensions (φ): 4, 5, 6, 7, 8, 9, 10, 11, 12 ●Total length (mm): 72 ●Surface treatment: titanium nitride aluminum coating ●Drilling dimensions (φmm): (4), 5, 6, 7, 8, 9, 10, 11, 12 ●Spiral specification ●Hexagonal shaft shank ●Effective cutting capacity: 9 steps (4/5/6/7/8/9/10/11/12) ●Recommended rotation speed (rpm): Ferrous metal (600-900), stainless steel (300-450) ●Compatible with impact drivers Material/Finish: ●Cobalt high speed steel (HSS-Co) Note: ●The size displayed in parentheses for the drilling dimensions is the step width in parentheses.