【Heavy Duty for Stainless Steel】 The Cobalt Drill Bits(M2+3%Cobalt STEEL) can drill 6X longer life and 2X faster. This Drill bits is heavy duty for Stainless Steel, Metal, Galvanized Steel, Aluminum,Iron, Wood, PVC and Copper. This step bit is tough,sharp and can drill many holes on hard metal like a Work Horse! 【Cobalt Step Bit】Prefect for Stainless Steel/Metal Sheet/Plastic/Aluminum Sheet/Copper and other metal sheets. This Drill bit can successfully drill more and more holes easily into Stainless Steel plate like knife through butter! [12 Steps ︱2-Straight-Flute] 12 Steps: from 3/16", 1/4", 5/16", 3/8", 7/16",1/2", 9/16", 5/8", 11/16", 3/4" 13/16" to 7/8". 2-Straight-Flute:Clears Chips faster 【A Work Horse】This spiral shaped step bit is a work horse. Easily drilled through the steel platform of your zero-turn mower, cold rolled steel, lug bolt, old rack, iron rotors, tractor bucket, washer, heavy steel loader bucket was made for a tractor, hydroponics tubing,water pipe, cabinet COBALT DRILL BIT / HEAVY DUTY for SS / (3/16" to 7/8") SPECIFICATION:
Rank:Industrial grade
Duty: Heavy Duty
Size: 3/16--7/8 inch, 12 Steps
Manufacturer No.: Co78Z
Material:M2+3%Cobalt STEEL
Increments:1/5 inches
Shank: 3/8" Tri-Flatted shank
Flute: 2-Straight-Flute
Apply to:Stainless Steel, Hard Metal, Aluminum,Wood,Copper