Recent content by Bruce Rossiter

The grinding disk in your picture looks like its a depressed center disk and the nut should go on the abrasive side of the disk facing away from the angle grinder.

Oops, I almost forgot. Zero the meter before you turn anything on. the small dial at the bottom of the gauge is used to zero the meter.

To calibrate it, turn the top left side selector to dwell, connect the 2 test leads together, and adjust the dwell calibrator knob until the needle reads on the bat set line on the right side of the scale. Once its calibrated, select the RPM range you want to use, select the number of cylinders...