Features 1、WEAR RESISTANT SERRATION: Hole saw kit with multi specification serrations, incisive, durable, and wear resistant 2、EASY DISASSEMBLY: Hole saw set come with installation tool, disassembly work is more convenient and easy 3、INCISIVE AND EFFICIENT: The surface of the hole saw is polished, the blade teeth is incisive and smooth, and the opening is more efficient 4、HARD CARBON STEEL: The product is composed of carbon steel material, with higher hardness and better wear resistance 5、WIDE USE: Hole saw bit is suitable for drywall cutting and punching, also used for wood, metal, plastic Specification Item Type: Hole Saw Kit Product Material: Carbon steel Product Weight: 1057 g / 37.3 oz(approx.) Use: For gypsum board cutting and punching Package List 11 x Hole Saw 3 x Drill Bit 1 x Wrench 1 x Gasket 2 x Hex Handle 1 x Storage Box