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Step 6Drill the Piston Mounting Plate

Drill the Piston Mounting Plate
Note that the piston assembly's thread is a tapered thread. Carefully select a drill bit that is approximately the same diameter as half way up the tapered section.

Mark the center of the plate, center punch it to keep the bit from "wandering" and drill the hole in the center of the plate.

CAUTION ! Whenever drilling sheet metal, there is a tendency for the bit to "grab" the sheet metal from your grasp, making a wicked rotary knife that can slice you up pretty good. Use pliers or a vice to grasp the sheet metal whenever drilling.
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