Brand New INPANOLS 18 Pcs ER32 Collet Set, 3/32######x27;######x27;-3/4 Precision Spring ER32 Shank Chuck for Boring, Drilling, Tapping, Milling Lathe Engraving Tool. 18 Pcs ER32 Collet Set in Fitted Strong Aluminum Box, Size Included: 3/32######x27;######x27;, 1/8######x27;######x27;, 5/32", 3/16######x27;######x27;, 7/32######x27;######x27;, 1/4######x27;######x27;, 5/16######x27;######x27;, 11/32######x27;######x27;, 3/8######x27;######x27;, 13/32", 7/16######x27;######x27;, 1/2######x27;######x27;, 17/32######x27;######x27;, 9/16, 5/8######x27;######x27;, 21/32######x27;######x27;, 11/16######x27;######x27;, and 3/4######x27;######x27.
TRUE DOUBLE ANGLE for Better Accuracy, the runout is 0.0003" for size 1/8" and larger, and 0.00059" for undersize 1/8". ECCENTRIC DESIGN: The inside of the ER32 collet nut is intentionally designed like off-centering to help mount the ER32 collet much easier. HIGH HARDNESS: Made of high-quality alloy spring steel and hardened to HRC 44-48 and all critical surface is precision ground. This collet size is true imperial fractional size, not a metric converting size and the surface on this collet has been specially treated to increase its tool life. All our products are brand new and sealed. We take our reputation seriously.