Foam Cutting Hole Saws

A printable HoleSaw drill bit.
Suitable for soft materials like foam, if you need a certain size for limited use.

This was originally to make circular foam blanks but i decided it might be useful to others as a hole saw, so ive produced versions in a few common sizes of existing bits.
20,22,32,38,44,51,60,127mm -
happy to make more if you have a need. Each is embossed with its size.

They should fit on a standard drill chuck, rather than using a plain rod or hex, i've made a triangular fitting that should handle more torque and be more printer compatible.
There are a couple of variations of the fitting depending on size.