The heat-resistant titanium coating prevents debris from welding and the special thinning process on the blade ensures stable positioning and long life. Can be used continuously or dry without worry.
The 4-blade spiral prevents the tools from falling over, providing a light cutting edge and excellent stability.
A line up of small to large diameter sizes combined with the most frequently used for potential work.
Drilling Size: 4, 5, 6, 7, 8, 9, 10, 11, 12
Total length: 3.0 inches (75 mm)
Shank Diameter: 6.35
Number of Tiers: 9
Thin iron plate 0.08 inch (2 mm) or less/aluminum 0.08 inch (2 mm) or less/wood/stainless steel 0.06 inch (2 mm) or less (633 is 0.06 inch (1.