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 HDT-A510-U, AUTOMATIC DIGITAL SUPERFICIAL ROCKWELL HARDNESS TESTER, 6940561976632
Standard Abrasives 710725, A/O Full Taper Cartridge Roll, 1/2 in x 1-1/2 in x 1/8 in 36, 7100085875
3M 47105, Cubitron II Stikit Film Disc 775L, 320+, 6 in x NH, Linered w/Tab, Die 600Z, 7100145432, 250 per case
Dynabrade 10690 Filter/Regulator/Lubricator, FRL40, 1/2" NPTAssy.
Standard Abrasives 718217, A/O Full Taper Cartridge Roll, 3/8 in x 2 in x 1/8 in 120, 7100102905
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 