Feature:1. TOOTH AND SPRING: High speed steel cutting edges provide impact resistant teeth and tooth stripping resistance, and flexible spring form a flexible backing.2. APPLICABLE MATERIAL: This hole saw bit is ideal for cutting holes in soft metal, wood, PVC board, plastic and plasterboard and has a wide range of applications.3. HIGH EFFICIENCY: With incisive tooth design for clean and glossy cutting, which ensures high accuracy hole machining, improve drilling efficiency.4. DURABLE METAL: Using high speed steel material, with special heating process, hard and rustproof, wear resistant and heat resistant, has long service life.5. FAST CHIP REMOVAL: This center drill hole saw adopts a unique hole design, which is convenient for chip removal, not easy to block, efficient and durable.Specification:Item Type: Hole Saw BitMaterial: High Speed SteelHole Opening Depth: Approx. 32mm / 1.3inHole Saw Height: Approx. 37mm / 1.5inCenter Drill Length: Approx. 97mm / 3.8in.Package List:1 x Hole Saw1 x Center Drill Note:1. There is a slight error in size.2. Not recommended for hardwood, hard metal and stone.