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

3M 26104, PPS Series 2.0 Adapter, Type S20, 1/8 Male, 27 Thread NPSM, 7100135929
Insize 4808, WIRE GAGE, 0-36(.3249~.0050"), 6928640330155
3M 33443, Cubitron II File Belt, 36+, 1/2 in x 18 in (12.7 mm x 457.2 mm), 7100033184, 10 belts per carton, 5 cartons per case
Air Turbine Tools 200SV - 1/8" Straight Hand Tool Series, 50,000 RPM, 32060
3M 26102, PPS Series 2.0 Adapter, Type S16, 3/8 Female, 19 Thread BSP, 7100135934
3M 95728, Venture Tape Cryogenic Vapor Barrier Tape 1555CW, Silver, 48 mm x 45.7 m, 7000049897
3M 27468, EMI Copper Foil Shielding Tape 1181, 1 in x 18 yd (25,40 mm x 16,5 m), 7000132169
3M 45555, Cubitron ll Cloth Belt 784F, 60+ YF-weight, 3/4 in x 18 in, Fabri-lok, Single-flex, 7100119295, 200 per case 