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

3M Cubitron 3 Fibre Disc 1187C, 80+, 7 in x 7/8 in, Die 700BB, 100 ea/Case, 7100349567
3M 22586, Neoprene High Performance Contact Adhesive 1357, Light Yellow, 1 Gallon Can , 7000046325, 4/case
Dynabrade 56180 5" Dia. Non-Vacuum Disc Pad, Hook-Face, Short Nap
3M 69373, Trizact Cloth Belt 237AA, A160 X-weight, 3/4 in x 18 in, Film-lok, Full-flex, 7010309432, 200 per case 