About This Safety and Durable: High quality heat-treated carbon steel with black coating surface, allows for a more aggressive cut, anti-rust and durable Multi-Purpose: Suitable for soft wood, thin PVC panel and thin plywood, but not for metal and hard wood. Excellent tool for home DIY easy to switch different cutting sizes Fast and Clean: Smoothly finish, sharp teeth reduces resistance during cutting and allows fast and clean cuts Common Size: Included most common sizes for home and work demand, 5 PCS hole saws 1" (25 mm), 1-1/4" (32 mm), 1-1/2" (38 mm), 2" (51 mm), 2-1/8" (54 mm), 1 pc mandrels, 2 pc drill bits, 1 pc hex key, 1 pc package box Warmly Tips: Can be used with a standard electric drill, impact drill, If you need very precise holes, please use a saw machine. Not for use for cutting depths beyond about 1"(25 mm) Overview Material : Carbon Steel Brand : KATA Product Dimensions : 0.98"L x 0.98"W Color : 6PCS Number of Teeth : 6 Style : Basic Item Thickness : 25 Millimeters Item Weight : 0.24 Kilograms Compatible Devices : Electric drill, Impact drill, Bench drill Unit Count : 6.0 Count