| The Breakroom > The Water Cooler |
| Oh bum |
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| Bigbadbugga:
:doh: Ordered sone ER25 collets and a MT2 collet chuck off eBay. It all came today, fairly nice quality for the cheap price but the chuck came tapped for a 3/8 drawbar not an M10. My fault really as I assumed it would be metric as all the sizes were listed as metric, it didn't state the drawbar size though. I messaged the seller suggesting they might put the info in the description, and asking if they have a metric one to swap. Just wait and see what they say. If they can't I'll just keep this one for the boxford lathe and make a bar for it, then order the correct one for the mill. |
| Arbalist:
If it's soft enough you could drill and tap M12 if it's any help. All my collets etc are threaded M12. |
| chipenter:
10mm X1.5 is very close to 3/8 Whit , tapping drill for 10 mm is .3mm bigger . |
| philf:
--- Quote from: chipenter on June 21, 2014, 04:07:04 PM ---10mm X1.5 is very close to 3/8 Whit , tapping drill for 10 mm is .3mm bigger . --- End quote --- That's exactly what I did with my 2MT collet chuck. Run an 8.5mm drill down first (or slightly bigger if the shank is very tough) then an M10 tap. The M10 is approx 16.93 tpi compared with 16 tpi for the 3/8 BSW but, as the M10 is nearly 0.5mm bigger in diameter you get several (and enough) perfect threads before the mismatch starts to show. Phil. |
| platypus20:
How long of a draw bar do you need?? I could send you a section of 3/8" hardened all-thread (same as grade 8 in USA or 12.9 in metric) and a few nuts. All I need to know is a length, and if its 3/8"-16 or 3/8"-24 thread jack |
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