Features HARD MATERIAL: Auger bits is made of chrome vanadium steel with high hardness and high frequency hardening of the blade ACCURATE POSITIONING: Supporting auger bits, with positioning function, tongue lock drilling tool UNIVERSAL HANDLE: The ball hole saw has a non slip handle part, which is convenient for clamping and carries more torsional force EFFICIENT AND PRACTICAL: Woodworking drill bit with chip removal hole design, more conducive to chip removal, improve work efficiency BALL DOOR LOCK: Suitable for ball door lock openings, also suitable for wood, plastic, plasterboard and other materials Specification: Item Type: Ball Hole Saw Set Material: Chromium vanadium steel Hole Opener Diameter: Approx. 54mm / 2.13in Hole Opening Depth: Approx. 44mm / 1.73in Auger Bits Diameter: Approx. 22mm / 0.87in Hole Opening Depth: Approx. 80mm / 3.15in Package List: 1 x Hole Opener 1 x Auger Bits 1 x Hex Wrench Package List 1 x Hole Opener 1 x Auger Bits 1 x Hex Wrench