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

Dynabrade 01011 Vane Set (4pk)
Insize 2323-6, BORE GAGE, 2-6", 6928640329289
Dynabrade 54630 Front Bearing Plate
Dynabrade 11486 Dynabelter Accu-Grinder Abrasive Belt Tool, Heavy-Duty
Dynabrade 92783 4" W x 50' L 3 Micron, Diamond Lapping Film DynaCut Roll
3M 64648, VHB Tape 4950, White, 1/2 in x 36 yd, 45 mil, Small Pack, 4 rolls per case, 7000123496 