2.37" X .59 BT40 COOLANT THRU RETENTION KNOB (3900-5392)

2.36" X .59 BT40 Coolant Thru Retention Knob Heat treated alloy steel. All dimensions are in accordance to MAS specifications for BT holders. D is .87". D1 is .59". D2 is .39". D3 is .15". D4 is .67". L is 2.37". L1 is 1.10". L2 is .24". The industrial reference number is PS-444X45. The thread is M16 X 2.0. The angle is 45°. Shipping Weight: 0.2 lbs