How do I attach the handle on the hex keys on CMHT26000? Wilson October 03, 2020 20:01 In order to attach the handle, you place the shorter end of the hex key into the handle and firmly press it into place to secure the hex key to the handle. Related articles Is there a rip guide available for the CMES510? Does my air compressor require a break in period? Are the 19.2 batteries interchangeable with the 20 v batteries? Comments 0 comments Please sign in to leave a comment.