Feature

●Tier Width: 0.18 inches (4.5 mm)
●Number of Tiers: 10
●Shank Diameter: 0.25 inches (6.35 mm)
●Drilling Dimensions (φ): 0.16, 0.31, 0.47, 0.47, 0.47, 0.79, 0.87, 0.87, 0.87, 0.97 inches (4, 6, 8, 10, 12,
●Surface treatment: titanium coating


Description

Drilling speed is more than 2 times and life is 3 times more
Made of cobalt high for sharp sharpness and durability.
Laser marking dimensions ensure hole dimensions are not fade
It is also compatible with stainless steel, and it has also been thinned, so there is no need for a punch.
Positioning can be done at a glance.