I have just taken two days to destroy the gearbox
for the second time on one of these saws cutting 1/2 inch marine
Took the latest one back and got my money
back and bought a Mac Alister version.
Decided to strip the old one apart to find out what the problem was. It uses a 45 Degree rack and pinion type drive and it had stripped the cogs. A very poor design and was obviously a weak point.
Avoid these if you plan any serious wood cutting.