Spindle nose: ER-16 collet nose (collet nut not included); 2-step V-belt pulley
Two 20 mm lifetime lubricated bearings with dust cap
Adjustable preload on spindle bearings
Two 1/4-20 mounting holes drilled and tapped on centerline on bottom of base
Alignment key slot and key provided
NOTE: We do not sell the collet nut or collets used with the ER-16 spindle. Those are available through MSC Industrial Supply Co. or other tool supply sources.