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Milling machine drawbar

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Michael Gilligan	25/10/2018 15:28:06
23121 forum posts 1360 photos	Posted by Frances IoM on 25/10/2018 15:20:43: maybe he has a non-metric machine + tooling with a 3/8th drawbar - . Yes, maybe
Jon	25/10/2018 16:49:21
1001 forum posts 49 photos	Posted by Frances IoM on 25/10/2018 15:20:43: maybe he has a non-metric machine + tooling with a 3/8th drawbar - I've had to make such a drawbar to use some MT2 tools on my otherwise metric machine You can have metric machines with 3/8" drawbar, toolings all the same just the threads different. No big deal any way until they break mid job, silver solder wont hold neither brazing. Only ones that hold up are v out, jointed and welded. All thread will get you out of trouble but its quite weak and the thread will strip.
Nick Wheeler	25/10/2018 17:45:43
1227 forum posts 101 photos	Just how tight do you tighten your draw bars?
Howard Lewis	25/10/2018 22:35:10
7227 forum posts 21 photos	Recently, I bought two Collet chucks with M12 female threads. My Mill/Drill has a 3/8 BSW drawbar. So took a length of M12 , put in the lathe, drilled and tapped 3/8 BSW , parted off 3/4 inch long. Onmce Loctited into the 3 MT arbors, and Off we go to work! I made a metric drawbar for the lathe, for one particular job, (as already said - studding plus nut and washer) but cannot remember when it was last used. The 3/8 BSW that came with the lathe in 2003 is still in almost daily use. Howard

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