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ER collet chuck for Super 7
| Howard Lewis | 17/08/2023 00:09:36 |
| 7227 forum posts 21 photos | If it is any help, ER32 collets will accept work up to 20 mm diameter, which is 0.7874"; a shade larger than your 3/4" nominal bore. ER25 atb 16 mm is just smaller so not much use to you. FWIW, I would favour a backplate type collet chuck, so that longer work can extens into the spindle bore. When I fitted a chuck mto the backplate on my lathe, I coated the surfaces with anaerobic sealant, and with the bolts lightly nipped, clocked the taper bore until it was within 0.0005", before fully tightening bthe bolts and rechecking. Howard |
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