Metabo GE700 US606303760 3-Inch Die Grinder with Deadman Switch,Metabo,GE700" /> No load speed 7000 - 27000 /min Collet bore of collet chuck 1/4 " The multi-talented one: with extended grinding spindle (mounted on double ball bearing in solid steel tube); ideal for grinding and sharpening in difficult to reach places Deadman Switch Thumbwheel for preselection of speed