Usage Tips:x Tideway Woodworking Hole Opener, smooth cutting experience, can punch holes smoothly, producing clean, debris-free, precise, smooth and burr-free edges. x The 15 angle saw blade is specially designed for woodworking, using industrial grade hard tungsten alloy saw blade, special heat treatment technology, sharp saw blade, high hardness, high cutting efficiency, using a 45 steel substrate, strong and durable, it is an ideal tool for mass production and factory use x The hole saw head is suitable for most drilling machines, suitable for CNC and other automatic milling machines as well as for portable and desktop milling machines. Hinged drill very suitable for individuals to use as advanced tools for DIY tools. x Wide range of applications: three-tooth arc surface design, more uniform stress, stable and fast drilling, suitable for the drills solid wood, hardwood, plywood, MDF, particle board, etc. x Good-looking, easy-to-carry packaging: the drill bit is placed in a sturdy plastic box to protect it from damage when shipping. It is also easy to store and keep in good condition for the next use.