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

Insize 6841-170E, GRANITE DIAL INDICATOR STAND (BASIC TYPE), without fine adjustment, 6940561974546
3M 20942, PSA Cloth Disc 348D, 80 X-weight, 3/4 in x NH, Die 75K, 7000118911
3M 33178, Scotch-Brite Radial Bristle Brush Replacement Disc, BB-ZB, 80, Type C, 7-5/8 in, Refill, w/o Adaptor, 7100138303
3M 22333, Cloth Belt 577F, 120 YF-weight, 3/4 in x 20-1/2 in, Fabri-lok, Full-flex, 7000119441, 200 per case
3M 86775, Cubitron ll Cloth Belt 947A, 40+ X-weight, 3/4 in x 18 in, Fabri-lok, Single-flex, 7100033084, 200 per case 