Norton 66254414832 - 3" X 1/4" X 1/4" Vortex Rapid Blend Unified Wheel, 5am U2305, 40 Each 
3M 27551, EMI Copper Foil Shielding Tape 1181, 1/2 in x 18 yd (12.70 mm x 16.5m), 7000132182 
Insize 6566-2, ELECTRONIC EDGE FINDER, shank 20mm, without Beeper, 6928640321191
$126.51
The shank is electrically conducted to the metal workpiece through the chuck and table, the LED lights up and the beeper sounds(only for 6566-3), when the ball touches the workpiece. Not suitable for rotary use. Hardened shank and contact ball.
