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 26130, PPS Series 2.0 Adapter, Type S35, 16 mm Female, 1.5 mm
Thread Stretched, 7100135926
Insize 1110-150D, DIGITAL CALIPER WITH CARBIDE TIPPED JAWS, IP67 dust/waterproof (no data output), 0-6"/0-150mm, 6928640387463
3M 11411, Roloc Disc 361F, 50 YF-weight, TR, 1 in, Die R100N, 7000045095
3M 30687, Cloth Belt 577F, 36 YF-weight, 3/4 in x 18 in, Fabri-lok, Single-flex, 7010308881, 200 per case 