Outside Corner Bracket 4 inch x 4 inch x 12 inch overall height. (With the base, it measures 6″ x 8″ x 12″ o.a.h.) This tool is great for establishing and squaring up corners of your weldment. The bolt down arrangement (method of bolting this item to the Platen) allows you to position it at any angle relative to the sides of the Platen. It uses what we call a Slotted Bracket – that comes with this Component – to bolt the Corner Bracket to the Platen. WSCORNER12 comes with slotted Bracket and one bolt, nut and washer, for attaching it to the Platen. Works great with WS30 Mitre Clamp.