Hole Jig for Round Stock / Dowel / Pipe

Simple jig for drilling 3/8" holes in round stock such as wood dowels, metal tubing, or plastic pipe. Will accommodate stock from .75" to 1.75." Use 1/4 - 20 bolts and wingnuts to clamp piece to stock, finger tight is all. Worked great for a project needing through bolts in several steel tubes. Two sides are identical, except for text added to "part A."

Fusion 360 file included if you care to resize, change text, etc. Basic changes to drill hole and bolt hole (peghole) sizes can be made through simple change in Parameters table.

Note: close tolerance in hole size, and thickness of the flange for the bolts are desired for good alignment of the jig parts.