Two holes down, 22 more to go. Here's how it went: Using the pointed wiggler, line the punch point on the shell up under the spindle. After checking the front and side alignment with a magnifying glass, bolt the shell down and check the alignment again. We found the shell moved slightly each time we tightened the hold-down screws. Keep adjusting until things are tight but still true to the punch mark. Center drill a hole, Tap drill al the way through, Tap for for a 10-32. I wanted the extra security of a threaded hole in this nice thick smokebox shell instead of just a through-hole nut and bolt assembly. After that hole is done, loosen the clamps, rotate the shell until the next punch mark is on top and repeat: wiggler, center drill, tap drill, tap.
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