Engineered for extreme durability and long life in hard metal applications

Designed with a variable helix that includes an aggressive 35 deg (degree) helix angle which ends at 15 deg

Cobalt bits with RED HELIX provide rapid chip removal limiting heat buildup to stay sharper longer

135 deg split point tip delivers a precision start and prevents walking for fast, accurate holes

I for tough applications

Applications include wood, stainless steel, metal, plastic, PVC (polyvinyl chloride)

Sizes include 1/16", 5/64", 3/32", 7/64", 1/8", 9/64", 5/32", 3/16", 7/32", 1/4", 5/16", and 3/8"