According to the Ridgid parts website the handle bolt is listed as M10x28mm,Soc Hd. Any idea what allen key size it uses?
I believe it is 5/16".
It uses a 5/16" Allen key.
According to a post else where in this forum 5/16" Allen key works. My set only goes up to 1/4 inch so I cannot confirm this.
Metric 6 mm works. Metric 6 mm works.
I used a flat head screw driver. It is in there tight, but I got it out with a little help from vise grips on the screw driver.
There ended up being a lot of blue locktite on the bolts when I took them out. I bought a cheap set of metric Allen keys and the 8mm one was the exact size needed.