Features 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 Bit Material: High Speed Steel Hole Opening Depth: Approx. 32mm / 1.3in Hole Saw Height: Approx. 37mm / 1.5in Center Drill Length: Approx. 97mm / 3.8in Package List 1 x Hole Saw 1 x Center Drill