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 66254497067 - 2" X 1/4" 100 - 150 Grit Medium Grade Aluminum Oxide Vortex Rapid Blend Blue TR Non-Woven Abrasive Disc, 25 Each
3M 16066, PPS Mix Ratio Inserts, Mini (6 fl oz), 7000120511
Norton 66254414832 - 3" X 1/4" X 1/4" Vortex Rapid Blend Unified Wheel, 5am U2305, 40 Each
3M 53038, 663FC, 3/8" X 90", 20u, Diamond Trizact Belt 7100205972
Dynabrade 53270 7" (180 mm) Dia. Right-Angle Disc Sander
Insize 2323-15, BORE GAGE, .7-1.5", 6928640329265
3M 69373, Trizact Cloth Belt 237AA, A160 X-weight, 3/4 in x 18 in, Film-lok, Full-flex, 7010309432, 200 per case 