5/16 COBALT HYPER-STEP MECHANIC'S LENGTH DRILL BIT DBCHS20 | eBaydiy Tools

Matco’s exclusive Hyper-Step tip design that cuts 45% faster and stays sharp up to 4X longer
Cobalt drill material for use on even the toughest jobs like stainless, Grade 8 fasteners, hardened alloys and titanium
Mechanic’s length size for increased drill bit rigidity and improved tight space access
Tip design acts like a step drill, spreading the job of cutting across multiple levels, keeping the drill bit cool, the wear down and eliminating the need for pilot holes