Pointer Knob, 1-1/8, 1/4X1/2 PH, 8-32 SS
- Made from alloy steel 5155 with heat treat to RC 56-58.
- Head Diameter?0.747" Head Angle ?15° Drawbar Thread Size?5/8"-11 Machine Taper Size ?CAT40 Neck Diameter?0.549" Hole?0.281" Pilot?0.641" Overall Length?2.001" Shoulder To Head?0.787" Shoulder To End?1.024".
- High quality black oxide finish to ensure long enduring tool life.
- Each retention knob is individually magnetic particle tested to ensure free of crack.
- Fully ground on all critical surface including a pilot under the flange of retention knob for full contact between tool holder's taper end and retention knob.