Originally Posted by
FineLineAuto
Things are moving along. Got my TTS order from Tormach yesterday. I found out something interesting that made me rethink my TTS tooling and my use of drill chucks. ER collets in metric sizes will apparently clamp a 1mm range of shafts. A 4mm collet will fit a shaft sizes between 3 and 4mm. Because of this, it was suggested to put drill bits in a ER holder with the appropriate metric collet instead of a drill chuck. The advantage is better balance and less run out. Curious if anyone is doing this and how much better it works versus drill chucks?
Been doing that for a long time. In my case, I have a RF31 so the use of the collets means less tool overhang. I also feel there is better rigidity and less runout as everything is more compact.
Art
AKA Country Bubba (Older Than Dirt)