Synthetic Diamond Insert 2mm x 3mm x 4mm is set on the centre into Diaform Type Shank 3/8″ diameter x 1-3/4″ OAL. with 0.25mm (0.010”) – 0.5mm (0.020″) lapped radius with 40 degree included angle
CHD-4010. 0.25mm (0.010″) radius
CHD-4020. 0.5mm (0.020″) radius