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 11486 Dynabelter Accu-Grinder Abrasive Belt Tool, Heavy-Duty
Dynabrade 14010 Dynafile Abrasive Belt Tool Versatility Kit
3M 22408, Roloc Disc 361F, P100 YF-weight, TR, 1-1/2 in, Die R150S, 7000045101
3M 71358, 641WY 1/4" X 24", 600 Mesh Diamond Cloth Belt, 7010534894
3M 65087, Scotch-Brite Diamond Wheel, 3" x 1/2" x 3/8" 645DC, 7100083803
Standard Abrasives 713159, Aluminum Oxide Handy Roll, P120 J-weight, 1-1/2 in x 50 yd, 7010290409
Dynabrade 53270 7" (180 mm) Dia. Right-Angle Disc Sander
Insize 7342-M4, PIN GAGE HANDLE (OPERATED WITHOUT WRENCH)15.89-19.00mm/0.626-0.750", 6940561971156
3M 26135, PPS Series 2.0 Adapter, Type S40, Trapezoidal Thread, 7100135335
3M 05011, Cloth Belt 384F, 120+ XF-weight, 3/4 in x 20-1/2 in, Fabri-lok, 7100141429, 200 per case 