i've been using a brass version for a while now,got it off ebay for a few pounds,very handy,just dont try to go too quick or you risk bending smaller drills. paul

Cheers Paul By coincidence, Model Craft's version has just arrived for review. I'll be sure to mention your warning about not going too hard on the finest drill-bits. All the best Rowan

Aye it's a great way to get through .3mm bits. .5 and upwards should be OK. It's only on drilling bigger holes you need the Archimedes screw anyway. Just use it like a normal drill/pin vice for the small bits and you'll be fine. oh and drill your pilot hole as if using a normal drill then you'll not send it skiting across the plastic as you push down on the spring. Esp true for curve fuselage sections. All common sense really, but if you're like me with a new tool common sense goes out the window till the lessons are learned