7/8, 1-1/8, 1-3/8 Inch Carbide Hole Cutter kit 3 Piece Heavy Duty Tungsten Carbide Tipped Hole Saw Set for Stainless Steel Metal Iron Copper, Extra T-Shape Ratchet Screwdriver with CRV bits

Character: 1/4” Hex shank use for standard drills or high-torque impact drivers. Max torque: 80 Nm.
Description: The pilot bit spring is for automatic disk ejection, easy plug removal. The top shoulder design prevents over drilling into material and potentially damaging inner components of the electrical and junction boxes when hole is completed. Be careful: Lower the SPEED at the beginning, otherwise, it is easy to break teeth.
Advantage: The variable teeth are M42 Co 8%, 8 TPI, Durable design for smooth cuts in sheet metal, Clean, fast cutting long-lasting use. Cuts much faster than standard bi-metal hole saws up to 50%. The hole saw has thin 0.02” sidewall blade thickness for longer battery life. It's ideal for chargeable impact drivers.
Application: Ideal for electrical and plumbing tradesman, construction, aircraft, maintenance. Use in plastics and sheet metal. Max cutting depth:1/8” thickness (stainless steel less than 0.04” 1 mm).
Package: 1 of 7/8″, 1-1/8″, 1-3/8″ thin-wall hole saw cutter with 1/4” hex shank & pilot drill bit, 1 pp box. Complete assembly, not necessary for separate arbor and pilot drill bit.

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