The anti-friction coating reduces radial distortion helping improve run-out. Parlec P3 ER collets have a repeatably accuracy of 0.0001” and are sealed for coolant pressures up to 2,000 PSI due to a special slotting design. Parlec P3 ER collets are available in ER11, 16, 20, 25, 32 and 40 in inch and metric sizes and are meant to be used with on-…