Collets vs Tool Holders - AKA: More R8 Mumbo Jumbo

[old mart]

Now the question... better to remove the key or to leave it in? 3 HP scares me on R8, let alone 5.

If you do remove the key, might wanna mark your holder to spindle with some nail polish as well. Wouldn't want it galling up the spindle on heavy cuts.

If it slips, the key won't do anything but gall the spindle bore, whether it is present or not makes no difference to the power that the tooling breaks free.

[Bob La Londe]

Tracking shows my new machine in Phoenix today. It will probably be in El Centro this this evening, but I won't get a call until sometime next week I am sure.

[The Metal Butcher]

If it slips, the key won't do anything but gall the spindle bore, whether it is present or not makes no difference to the power that the tooling breaks free.

That's a point. I'm sure it adds a little extra holding resistance. But I agree you don't want it to bear force. The machines I've used always had them removed. I get so confused for a second when I use a machine with it installed.