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 45234 Sleeve, for 48541, 15K RPM
Dynabrade 56800 3-1/2" Dia. Non-Vacuum Dynorbital Supreme Random Orbital Sander, 3/16 Orbit
Dynabrade 91436 1/4" W x 24" L 120 Grit A/O DynaCut Belt, 50/pack
Dynabrade 57445 Needle Bearing
Dynabrade 79513 1/2" W x 12" L Medium DynaBrite Plus Surface Conditioning Belt, 10/pack
Dynabrade 56890 6" Dia. Non-Vacuum Dynorbital Supreme Random Orbital Sander, 3/8" Orbit
Dynabrade 56862 6" Dia. Self-Generated Vacuum Dynorbital Supreme Random Orbital Sander, 3/32" Orbit
Dynabrade 11005 Dynafile Belt Housing Guard
Dynabrade 65415 Slack Attachment Assy
Dynabrade 57342 Lever
3M 45097, Roloc Disc Pad TR, Extra Hard 2 in 1/4-20 Internal, 7000045284
Dynabrade 11216 Contact Arm Ass'y, 5/8" Dia. x 1/8" W, Rubber Wheel, with 1/4" W Platen
Dynabrade 51148 4-1/2" Dia. Disc Backup Pad, Medium Density, 5/8"-11 Thread
Dynabrade 96529 Tune-Up Kit for .7 hp Motor, Front and Rear Exhaust
Dynabrade 91744 DynaMesh 8" 320 Grit Hook & Loop Discs, 50 per box
Dynabrade 57407 2-3/4" W x 8" L Dynaline Sander, Non-Vacuum with Clips
Dynabrade 94407 1/4" NPT Composite-Style Flow Control Dynaswivel
3M 45094, Roloc Disc Pad TR, Soft 2 in 1/4-20 Internal, 7000045278
3M 20940, PSA Cloth Disc 348D, P120 X-weight, 3/4 in x NH, Die 75K, 7000118912 