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 6302, MICROMETER STAND, 6928640392467
Standard Abrasives 877012, Unitized Mounted Point, 731 A21 x 1/4 in, 3M 7100074611
3M 47087, Cubitron II Stikit Film Disc 775L, 240+, 5 in x NH, Linered w/Tab, Die 500X, 7100145374, 250 per case
Dynabrade 53270 7" (180 mm) Dia. Right-Angle Disc Sander
3M 30687, Cloth Belt 577F, 36 YF-weight, 3/4 in x 18 in, Fabri-lok, Single-flex, 7010308881, 200 per case 