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 13509 Dynastraight Finishing Tool, Rear Exhaust, 6,000 RPM, 5/8" (16 mm) or 1" (25 mm) Dia. Arbor
Dynabrade 95677 1/4" Male Plug with 1/4" NPT Female Thread
Insize 6140, DEPTH BASE ATTACHMENT, suitable for calipers with beam width (w) .630", 6928640303579
3M 26580, Accuspray ONE Spray Gun System with PPS Series 2.0 Spray Cup System, 7100163226
Dynabrade 98269 1/2" Female Coupler
Dynabrade 98272 1/2" NPT Female Plug
3M 22393, Roloc Disc 361F, 36 YF-weight, TR, 3 in, Die R300V, 7000045093
Dynabrade 97571 1/2" NPT Male Safety Coupler
Dynabrade 95684 1/4" Male Coupler
3M 84404, Cloth Belt 777F, 60 YF-weight, 3/4 in x 18 in, Fabri-lok, Single-flex, 7000118392, 200 per case 