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 5022, 2-PIECE MEASURING TOOL SET, 6928640321290
3M 55065, Cubitron II Cloth Belt 984F, 36+ YF-weight, 3/4 in x 20-1/2 in, Fabri-lok, Single-flex, 7000148169, 200 per case
ACS Diamond Cloth Belt, CX1250 3/8" X 24" 75U
3M 20942, PSA Cloth Disc 348D, 80 X-weight, 3/4 in x NH, Die 75K, 7000118911 