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 22397, Roloc Disc 361F, 60 YF-weight, TR, 1-1/2 in x NH, 7000045097
Insize 6301, MICROMETER STAND, 6928640307300
3M 80486, Cloth Belt 777F, 60 YF-weight, 3/4 in x 20-1/2 in, Fabri-lok, Full-flex, 7000118443, 200 per case 