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 40320 Dynafile II Abrasive Belt Tool
Insize 4120-16, METRIC THREAD RING GAGE, GO, M16x2, 6928640341496
3M 19553, Cloth Belt 577F, 60 YF-weight, 3/4 in x 18 in, Fabri-lok, Full-flex, 7000119458, 200 per case 