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ER Collet | Length | Clamping Range |
ER-20 | 31.5 mm (1.24") | 1—13 mm (0.039—0.512") |
ER-25 | 34 mm (1.34") | 1—16 mm (0.039—0.630") |
ER-32 | 40 mm (1.57" | 1—21 mm (0.039—0.827") |
ER-40 | 46 mm (1.81") | 3—26 mm (0.118—1.024") |
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0937 - .7500 inches or in metric sizes from 3mm up to 20mm. The number shown on the collet is the largest size that particular collet can hold, but it ...
039 inches(1mm). The Nominal Size indicated on the collet is the largest size it can hold. It can be collapsed to the smaller clamping range listed.
Sep 29, 2014 · The beauty of ER Collets is that it makes full contact thru out its 1mm clamping range, at least in theory. In your case, I would use .750-.789, ...