HSS Cobalt Drill Bits are Especially for Drilling in Hard and Abrasive Materials with Higher Red Hardness

1) Amber color finished and surface treatment for lasting -longer life an better performance in drilling
2) Best design of helix flute to enable the fast removal of debuts and chips, Fully Ground flute ensure quick drilling
3) Straight round shank to ensure better chucking
4) 135-degree split point ensures best self-centering and positioning, without pre-drilling