Feature(may vary by option.)

●(High Strength & High Hardness) M35 HSS-Co Cobalt High Speed Steel (Cobalt Coating) step drill is harder than normal HSS-4241 (high speed steel) for superior sharpness. Can also be applied to stainless steel and iron plates to complete tasks that cannot be used to HSS-4241
●[Specifications] Hexagonal Shaft Diameter: 0.25 inches (6.35 mm). 10 Tiers 3-12mm (3,4,5,6,7,8,9,10,11,12mm)
●Applications: Can be used for drilling and beveling, enlarging holes of stainless steel plates (up to 0.04 inch (1 mm)), steel plates, copper plates, aluminum plates (within 0.2 inch (5 mm)), wood, vinyl, resin, etc. We recommend cutting the number of revolutions and using cutting oil for hard materials such as stainless steel plates, steel plates, copper plates, aluminum plates, etc. (Please prepare cutting oil separately.)
●Trademark Registration No. 6362090

[3-12mm]

Description