Feature:1. The hole saw is made of high carbon steel, which has high strength and hardness after quenching, which can extend the service life.2. The sawing hole depth can be 25mm, high accuracy and glossy cutting edge, especially impact resistance.3. The incisive serrations are designed for fast cutting without being stuck, making woodworking cutting faster and smoother.4. The punching kit is relatively complete, including a hex wrench and mounting plate, and is equipped with a packaging box, which is more convenient and not messy to use.5. This kit is suitable for cutting wooden boards, PVC boards, aluminum boards, plastic boards, spotlights, etc. (Not applicable to calcium silicate boards, metal boards and slate boards)Specification:Item Type: Hole Saw KitMaterial: High Carbon SteelColour: BlackTool Handle Type: Hex HandleHole Depth: Approx. 25mm / 1inHole Saw Size: Approx. 3/4in=19mm / 0.7in7/8in=22mm / 0.9in1-1/8in=28mm / 1.1in1-1/4in=32mm / 1.3in1-1/2in=38mm / 1.5in1-3/4in=44mm / 1.7in2-1/8in=54mm / 2.1in2-1/2in=64mm / 2.5in3in=76mm / 3in3-1/2in=89mm / 3.5in4in=102mm / 4in5in=127mm / 5in5-29/32in=150mm / 5.9inPackage List:13 x Hole Saw2 x Pilot Drill1 x Hex Wrench1 x Anti-Slip Fixed PlateNote:After use, apply a small amount of anti‑rust oil on the exterior of the hole opener to avoid natural oxidation and increase its service life.