Features： 1、LARGE HOLE CUTTING: Of sharpness teeth are ideal for cutting holes in soft metal, wood, PVC board, plastic. Cut clean, smooth and accurate holes 2、QUALITY HIGH SPEED STEEL: Made of high speed steel, has the advantages of high hardness, high wear resistance, high heat resistance, etc. 3、SPECIAL PROCESS: Special heating process is adopted to prolong the service life and prevent rust, useful and reliable 4、FAST CHIP EVACUATION: Unique hole design can easily evacuate chips and effectively improve drilling efficiency 5、WITH SPRING BACKING: HSS cutting edges provide impact resistant teeth and tooth stripping resistance. Soft spring form a flexible backing that allows the hole saw to absorb the effects of the job of drilling holes in difficult to cut materials Specification： Item Type: Bimetal Hole Saw Material: High speed steel Open Hole Depth: Approx. 32mm / 1.26in Hole Saw Height: Approx. 37mm / 1.46in Center Drill Length: Approx. 97mm / 3.82in Package List： 1 x Hole Saw 1 x Center Drill