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

Dynabrade 94980 1/4" Composite-Style Coupler, 1/4" Male
Insize 0213-A500, INFRARED THERMOMETER, -58?F~716?F/-50?C~380?C, 6940561934700
3M 86775, Cubitron ll Cloth Belt 947A, 40+ X-weight, 3/4 in x 18 in, Fabri-lok, Single-flex, 7100033084, 200 per case 