YTD/Inches    

• Carbide Brazed Tipped drill, HB shank,Internal coolant hole
• *140° self-centering point for accurate hole positioning.Regular helix angle : 28°~ 30° .
• *Drill body consist of heat-treated tool steel and cutting edge is brazed with carbide tip.

Carbade Substrate

• *Utra-fine Micro Grain, TiN & TiAlN coated.

Application

• *To perform heavy drilling operation and ideal for high productivity.
• *Specially designed for powerful machine. Effective cutting depth 3xDia.
• *Broad range application from general to tough material.