I havent had much to do with hammers before ,but as I can get more work and charge a higher rate with a hammer ,I am looking into getting one for a Cat 324DL. Since I didnt want to beat the daylights out of the new machine ,are there any hammer brands which are known to be softer on the machine. Do some have cushioned mounts or a design which doesnt hammer the machine as bad? The only ones I have had a look at are the Cat ones ,but are there any better ones to suit a 25 tonne excavator?