POLISHING ARBOR I made an arbor to polish piston pins and pilot bushings that can be chucked up in my lathe, or even in a drill chuck. First I cut off the head of a long carriage bolt. This one was 3/8” coarse and will fit in a small drill chuck. Then added a nut,...
![POLISHING ARBOR](https://enginepro.com/wp-content/uploads/2019/06/201605_polishingarbor1.jpg)