Features Durable Chrome Vanadium Steel: Crafted from premium chrome vanadium steel, these auger bits ensure high hardness and longevity for reliable woodworking projects Enhanced Positioning Accuracy: Features a tongue lock drilling tool for precise positioning, making your drilling tasks more accurate and efficient Non-Slip Universal Handle: Designed with a comfortable non-slip handle, this tool provides a secure grip, allowing for increased torsional force and control during use Improved Chip Removal Design: Engineered with a chip removal hole, these drill bits facilitate better debris clearance, significantly boosting your work efficiency Versatile Material Compatibility: Ideal for creating openings for ball door locks, this set works seamlessly with wood, plastic, plasterboard, and more for versatile applications Features: 1、HARD MATERIAL: Auger bits is made of chrome vanadium steel with high hardn and high frequency hardening of the blade 2、ACCURATE POSITIONING: Supporting auger bits, with positioning function, tongue lock drilling tool 3、UNIVERSAL HANDLE: The ball hole saw has a non slip handle part, which is convenient for clamping and carries more torsional force 4、EFFICIENT AND PRACTICAL: Woodworking drill bit with chip removal hole design, more conducive to chip removal, improve work efficiency 5、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