Drilling Square Holes with a Reuleaux Triangle — DO IT: Projects, Plans, and How-tos
Drilling Square Holes with a Reuleaux Triangle — DO IT: Proje…
Oct 4, 2011
mikesenese.com
Drilling a triangular hole isn’t possible with a standard round drill bit, but it can be done using a special method involving a Reuleaux triangle. This is a shape with curved sides that allows for a constant width, making it possible to drill a triangular hole using a rotating bit. To do this, you need a Reuleaux triangle drill bit and a custom jig that guides the bit in a specific, off-center motion. When used with a drill press, the jig forces the bit to wobble in a precise pattern, gradually
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