The material of the hole saw is a heat-treated M42 bimetal saw band with a sharp tooth shape. durable and good stability. Processing materials: fine metal to wood. plastic. PVC. etc The hole saw requires only 1 pass to cut the nails these hole saws are ideal for jobs where high performance and precision are required. Excellent for cutting wood. plastic. machinable metal. incorporated wood. plywood. pipes and steel. HSS hole saws feature impact resistant teeth and resist chipping. Soft, spring steel creates a flexible material that allows the hole saw to absorb the impacts of drilling holes in difficult-to-cut materials. Faster cutting. smoother without as much vibration as others thanks to its teeth variable toothing creates holes for pipe and tube installations. door lock installations. electrical conduits. pipes and antennas. The teeth are electronically welded to be unbreakable. made of shock-absorbing alloy packed in individual boxes. Remark : Gazebo included.