1.5 X 3.09" 60 DEGREE 1"-8 CAT50 RETENTION KNOB (3900-5493)

1.5 X 3.09" 60 Degree CAT50 1"-8 Retention Knob Heat treated alloy steel. All dimensions are in accordance to ANSI specifications for CAT holders. D is 1.50". D1 is .91". D2 is .67". L is 3.09". L1 is 1.39". L2 is .39". The thread is 1"-8. Shipping Weight: 0.6 lbs