Features

• Matco Exclusive Cobalt Hyper-Step Drill Bit Set uses the strongest material for you to drill through the toughest jobs like stainless, grade 8 fasteners, hardened alloys and cast irons.
• Mechanic’s length size for increased drill bit rigidity and improved tight space access which cuts 45% faster and stay sharp 4X longer than traditional bits.
• Each drill bit 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.
• Three-flatted shanks on both sizes below 3/8" and on the 3/8" reduced shank sizes up to 1/2".
• Contains 1/16" through 1/2" by 64ths cobalt mechanic’s length Hyper-Step drill bits.