11mm X 11mm Rounded Square 2mm Thick. (Fits Rutland Tools Mini Set). 30 degree Cutting Bevel. 11mm Rounded Square 50mm Radius 2.0mm Thick 30 Degree M4 Countersunk Hole (fits Rutland Mini Set). 11mm Square 2.0mm Thick 30 Degree M4 Countersunk Hole (fits Rutland Mini Set).