Hi Ross.. George is right.. Meant a second holder further up the spindle case.. George, the Kress is brand new, only had about 30 hours use and perhaps needs a little longer 'running in?'.. Never had one before.. It's very smooth (and surprisingly quiet) at any speed under top whack.. At full revs there is vibration which, as I can feel it quite strongly through my hand when holding the spindle, I am sure it will translate to the tool tip and affect the cut finish.. Not a problem at this time but was about to buy a 1mm dia tool, or even smaller, which will no doubt be affected.. Reckon I will need top speed for the tiny tools as surface speed will be low due to the small diameter of the cutting edge.. This is no big problem.. Just had it in my mind that I saw a post about it, Lee thinks he might have seen it too but neither of us can find it.. Was thinking of making one with about 5mm of cork around the gripping area to dampen the vibration.. Am at the stage of wrestling with all the fine tuning now and am making a list as I go along.. Still trying to get my head around cv vs exact stop in mach 3 at the moment which is a greater problem... But I reckon all these little tweaks help, even if each tweak is only a 0.5% improvement, they all stack up.. Steve...