this worked on .63 aluminum sheet. My compressor is 2 hp, 30 gallons, 5.5 hr cube feet per minute at 90 psi inches. Tried aluminum sheet 1.25, did not help. Immediately after the first 3-meter cut, it stopped working. After researching the information on the internet, someone suspected that this could be due to bitten aluminum parts getting stuck in the channel where the hammer vibrates. I had to take the cuff off and clear the jam from time to time, but after doing this about 20 times itβ¦