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 45015, Diamond Grade DG3 Reflective Digital Sheeting 4090UDS, White, 24 in x 50 yd, 1 Roll/Case, 7100282694
3M 18470, Scotch-Brite Roloc Coating Removal Disc, CR-DR, SiC Extra Coarse, TR, 4 in, 7100021755, 40 per case
Dynabrade 13509 Dynastraight Finishing Tool, Rear Exhaust, 6,000 RPM, 5/8" (16 mm) or 1" (25 mm) Dia. Arbor
3M 54135, Scotch-Brite Roloc AL Surface Conditioning Disc TR, 2 in x NH A VFN, 7100075708, 200 per case
Standard Abrasives 877059, Unitized Mounted Point, 732 A3 x 1/4 in, 3M 7010310345
3M 19076, Cloth Belt 577F, 80 YF-weight, 3/4 in x 18 in, Fabri-lok, Full-flex, 7000119452, 200 per case
3M 13257, Scotch-Brite Roloc Surface Conditioning Disc, SC-DS, A/O Coarse, TS, 3 in, 7010328681, 100 per case
3M 20911, PSA Cloth Disc 348D, 50 X-weight, 2 in x NH, Die 200P, 7000118871
3M 80486, Cloth Belt 777F, 60 YF-weight, 3/4 in x 20-1/2 in, Fabri-lok, Full-flex, 7000118443, 200 per case 