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

ACS Diamond Cloth Belt, CX1250 5/8" X 120" 125U
Dynabrade 95821 Dynabrade Air Lube 10W/NR, 4oz Bottle
3M 03140, General Purpose Sanding Sponge CP041-6P, Single Angle, 2-7/8 in x 4-7/8 in x 1 in, Medium, 7100101537, 6/pack
Insize MLP-GP314-U, GRINDER AND POLISHER(BASIC TYPE), 7.99" DIA, 6974029771415
3M 77992, Cloth Belt 777F, 80 YF-weight, 3/4 in x 18 in, Fabri-lok, Full-flex, 7000118382, 200 per case 