Axcaliber "Premium" circular saw blades are from the world's largest blade manufacturer. Using the latest production techniques and the best materials, the Premium blades feature micro grain TCT tips and resin damped laser cut plates to substantially reduce noise while cutting. The bore size is 30mm, a range of bore reducing bushes is available. These negative rake blades are the perfect choice for a professional mitre saw, the rake of the tooth will help prevent the blade from grabbing, creating a smoother, safer cut. The finish is first class on all natural timbers or man made boards.