Originally Posted by
jmullett
We use the through coolant style for our collet holders as it potentially allows the puff of air on tool change to blow chips off of the cutter when it puts the tool back into the carousel. The solid style works good too at the same price from MSC. The BT40 spindles in these Bridgeport VMCs use a different more elongated style.
Parlec - A Style, CAT40 Taper, 5/8-11 Thread, 45° Angle Radius, Standard Retention Knob
1.68 Inch Overall Length, 0.281 Inch Coolant Hole Diameter, 0.74 Inch Knob Diameter, 0.12 Inch Flange Thickness, 0.64 Inch Knob to Flange Length, 0.635 Inch Pilot Diameter, Through Coolant
Mfr Part #: 40TRK MSC Part #: 01401751
Parlec - A Style, CAT40 Taper, 5/8-11 Thread, 45° Angle Radius, Standard Retention Knob
1.68 Inch Overall Length, 0.74 Inch Knob Diameter, 0.12 Inch Flange Thickness, 0.44 Inch Knob to Flange Length, 0.635 Inch Pilot Diameter
Mfr Part #: 40NTRK MSC Part #: 0156128