Quote Originally Posted by m_c View Post
My guess would be the 45 deg taper is likely to not lock as strongly as the 30deg, and might possibly push the gripper balls back under high/interrupted cuts.

Cutwel have the correct studs listed - https://www.cutwel.co.uk/tool-holdin...-stud-standard
I did also find an Indian company last week who had through coolant studs listed at a cheaper price - https://www.toolsengg.com/ps-bt30-45-deg-w-tc.html

Only reason I currently know the spec, is I'm looking for a batch for some new tool holders I've got ordered for my Triac.
Thanks I knew you would know.. I have found these
https://www.ebay.co.uk/itm/2Pcs-BT30...72.m2749.l2649