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 53533 Cone or Plug Grinder (Triple Extension)
Dynabrade 40320 Dynafile II Abrasive Belt Tool
3M 19768, Utility Cloth Sheet 314D, 9 in x 11 in P180 J-weight, 7000000356
3M 19773, Utility Cloth Sheet 314D, 9 in x 11 in P60 X-weight, 7000000360
3M 77559, Cubitron II Hookit Cloth Disc 784F, 77559, 36+ to 120+, 5 in x NH, Die 500X, 7100232738
3M 22393, Roloc Disc 361F, 36 YF-weight, TR, 3 in, Die R300V, 7000045093
Standard Abrasives 713159, Aluminum Oxide Handy Roll, P120 J-weight, 1-1/2 in x 50 yd, 7010290409
Dynabrade 14000 Dynafile Abrasive Belt Tool
3M 15145 Scotch-Brite Surface Conditioning Low Stretch Belt, SC-BL, A/O Medium, 1 in x 132 in, 7010364529
Dynabrade 98271 1/2" NPT Male Plug
Insize 6144, ACCESSORY SET FOR DIGITAL CALIPERS, 6928640380839
Dynabrade 95675 1/4" Male Plug with 1/4" NPT Male Thread
3M 19568, Cloth Belt 777F, 50 YF-weight, 3/4 in x 18 in, Fabri-lok, Full-flex, 7000148229, 200 per case 