The shank is electrically conducted to the metal workpiece through the chuck and table,
the LED lights up and the beeper sounds(only for 6566-3E),
when the ball touches the workpiece
Not suitable for rotary use. Hardened shank and contact ball
Hardened shank and contact ball

Norton 66254433510 - 2" X 1/4" Medium Grade Aluminum Oxide Vortex Rapid Blend Blue Non-Woven Unified Wheel, 60 Each
ACS-CP Curved Edge Flap Disc, 4-1/2" Dia. X 5/8"-11 Center Thread, 60 Grit
3M 33078, Scotch-Brite Hookit Production Clean and Finish Disc, 5 in x NH, A VFN, 7100138331 
