USE: A Hard wearing CNC machined Compact Grade High Pressure Laminate 12mm thick jig that cuts both parts of the joint in 15 minutes including setting up. LEFT & RIGHT HAND CORNERS: Cuts Left hand and right hand corners in up to 40mm thick worktopswith or without anti-drip postformed edge. WORKTOP SIZES: Fixed lengths for 600mm, 616mm, 635mm and 650mm wide worktops. Two bolt recesses (dog bone style) for 150mm bolts. 400mm radius peninsular joint,35mm kitchen door hole.