Grizzly G0703P 1-1/2 HP Cyclone Dust Collector, Polar Bear Series These Hand Wheel Speed 5C Collet Chucks reduce operator fatigue and are fast and easy to use Changing from chuck to collet chuck is very quick with no linkages or draw bars Maximum cone accuracy is 0.0005-Inch TIR. Body is nickel-plated for corrosion resistance and handwheel gear teeth are nitride-coated for long life