I needed some more tool handles for some tools I am making. The cheapest adapters are $22. I had a piece of 1” aluminum round bar in my tool box from where I used to work. I was a beater bar to tap bearings and things you didn’t want to damage. I cut the mushroomed ends off and got two 12” pieces. I drilled the appropriate hole in the end for the tool, and drilled and taped two holes for the Allen screws. Then I put a piece of bicycle tire tube to make it comfortable. Really happy with how they turned out. Put a scraper I made in this one and the balance was really nice. I can but two 1” by 11” aluminum bars for under $20. I might be making more of these in the future.