TCT cutting edges and strong, hardened steel shanks. Includes: Straight: 6 x 20mm, 12 x 20mm, 16 x 20mm; 90° grooving: D12.7mm; Dovetail: D12.7mm; 45° chamfer: D32mm; Bearing flush trim: 12.7 x 13mm; Rounding over: R6.3mm D22.2mm, R9.5 D28.6mm; Cove box: R6.3 D12.7mm; Cove: R6.3 D22.2mm; Roman ogee: R4 D25.5mm.