zerk cleaning tool

This is a zerk or a grease fitting tool similar to the ones found on amazon. They work pretty good: you stick one end on a hex adapter at the end of a drill, and connect the business end to a grease fitting or a "zerk" and spin in any direction. This will dislodge the grease gunk out of the grease fitting so you can safely use your grease gun. The little pin at the end cleans the hole.

I used a 5mm default brim and printed a few in case one broke. I printed out of ASA so it' a little more resistant to the outside elements but my first prototype out of "waterbird" PLA still works after all this time.