![]() ![]() I don't think I would use the BT30 myself, but I do not need a lot of tool holders. When it comes to these things I want them to match. If they are off a steel milling machine I wonder if they are balanced to The new techniks ones are, but I believe that is not a common thing for the steel milling machines. I would not use these with the BT30 pull stud unless someone like Techniks says it is okay. The pull studs had the same overall dimension, the stud threads seemed to be the same, but the bottom and top of the studs look different in the images. When I compared the two drawings the BT30 seemed to have the same taper, but there are a lot of different dimensions available for the tool body. The BT30 seems fairly common in the steel machinist world. The one on the left in the image is what we run in the ATC, the one on the right seems to be the standard style you find. Lastly, the BT30 holders you commonly see out there have the recess for the tool fork machined offset (closer to the collet nut) whereas ours are centered?Īnyone know the callouts or designations for these dimensions? I will continue to pick up these bargain holders for manual changes but would love to be able to keep an eye out for those that would work in the ATC as well. Also, while they are all M12 for the pull stud, the three have a slightly smaller counterbore at the tip of the taper (our ATC holders measure 13mm on the counter bore and the three measure 12.5) Two different purchases, one for a couple of ER32 collet holders and one for a nice albrecht style chuck, have a slightly different dimensions in the recess that register with the forks on the ATC (the three are smaller in diameter so they flop around in the fork = useless for the ATC). That said, Ive gotten three now that have a bit different geometry than those that we run in the ATC. I regularly come across great deals on BT30 ER32 collet holders that are too hard to pass up. ![]() desc : For more information about Defense.We have 10HP HSD spindle, BT30, 10 position ATC. ![]()
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March 2023
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