Feature●One piece can drill holes in various sizes. The main body is made of HSCO steel (Cobalt High S), which has excellent abrasion resistance and heat resistance. The titanium coating is applied to prevent the welding of shavings caused by heat to extend the life of the blade●Number of Tiers: 9; Shank Diameter: 0.4 inches (10 mm); Tier Thickness: 0.2 inches (5 mm); Dimensions of Each Tier: 0.2 inches (6, 8, 10, 12, 14, 16, 18, 20, 22 mm); Weight: 2.3 oz (60 g)●Cobalt High + Titanium CoatingDescription
Effective cutting capacity: stainless steel 0.04 inch (1 mm) thickness, steel plate 0.08 inch (2 mm) thickness, resin 0.11 inch (3 mm) thickness.