Professional power tool-6 pcs hole saw kit | hole saw cutting set 6pc hole saw kit circle wood / timber cutter round plaster hole saw. All the products in this kit are made of premium carbon steel and processed with high frequency heat treatment. This product is used for general common hand drill, easy to operate. Hardened saw teeth are good for accurate and easy cut with the use of electric. Hole saw kit for drilling round holes easily and quickly. Sharp and durable teeth of hole saw ensure a powerful and high efficient action. High Carbon Steel Blade with induction hardened teeth. To be used on wood, plastic, mica rubber, leather and other soft materials only. Hole Saw Set Drill Bit 6 Pieces is Great addition to your Hobby Craft tool kit. These 4pc HSS cutting discs constructed of high speed steel are perfect for small cut off jobs HSS cutting is great for craft, home, repairs.