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 2722-07, PRECISION BORE GAGES FOR SMALL HOLES, .4-.7", with digital indicator, 6940561983692
3M 91597, VHB Tape 5930P, Black, 8-1/2 in x 11 in, 32 mil, Paper Liner, 3 sheets per package, 7000124741
3M 84303, Cloth Belt 777F, P120 YF-weight, 3/4 in x 18 in, Fabri-lok, Single-flex, 7000118388, 200 per case 