【Packing list】1 pcs 6-1/4-inch hole saw, 1 pcs matching dust bowl, 1 pcs mandrel, 1 pcs hexagonal wrench, 1 pcs drill bit, the matching tools allow you to have a more convenient use experience 【Sharp and wear-resistant】This hole saw adopts a bi-metal structure, equipped with high-speed steel saw teeth and a special flexible steel saw body. The edge saw teeth are sharper, with higher cutting strength and stronger wear resistance. 【Wide Application】Our hole punch saw is ideal for cutting recessed lighting fixtures, ventilation ducts, and can also be used to cut thin metal, wood, plywood, pipes, soft plaster and plastic, enough to meet daily use needs 【Easy to clean】Equipped with a hole-pitch dust collection bowl, it can help you block most of the dust when you are working. It can effectively prevent dust from entering your glasses or staining your clothes. It is especially suitable for gypsum board or ceiling work 【Notice】Please tighten the tool bar and hole spacing before using the drilling tool. This hole saw kit is not suitable for drilling on ceramic tiles and concrete