Taper: CAT 40
C: 45
D1 Knob: 0.740" / D2 Neck: 0.490" / D3 Hole: 0.28" / D4 Pilot: 0.636"
L: 1.625" / L1: 0.440" / L2 Shou to End: 0.640"
Knob Socket: RKW40