5-Arm BCD (Bolt-Circle-Diameter) Gauge [Bike Tool]

Tool for gauging the Bolt-Circle-Diameter of a 5-arm crankset or 5-bolt chainring, with even hole spacing, featuring the most commonly found BCDs. More info about BCDs can be found on Sheldon Brown's site here. 

Print settings are fairly irrelevant, I used PLA at 0.2mm layer height. I printed the last 0.6mm in a different color to make the text stand out.

A DXF file is also included in case you'd like the part to be laser cut/engraved or CNC-milled.