Clamping mitre box with saw with a patented cam lock clamping feature which secures the workpiece for easy accurate cutting. A built-in saw stop prevents cutting into the mitre box. The mitre box has 90° and 45° mitre slots as well as 22.5° slots for octagon shapes and is of a one piece injection moulded design for extra strength. Size: 310x170mm Maximum depth of cut: 80mm