Adjustable 3.940" - 4.060" Tapered Piston Ring Compressor

Idk why people have even a single issue with this. Definitely the best adjustable ring compressor I've used.

This is a great piston ring compressor. It feels solid and has plenty of adjustability even over the advertised 4.060". This was a great buy at a good price and Made in the USA.

dont risk it !!!!!!go buy the wiesco or arp one or hell even the steel band cheapo parts store onethe cheap anodized coating can get scraped off and the rings will drag it down the bore and make not so nice marks on your cylinder wallsMAYBE great in theorybut...NOT IN PRACTICE....

Great works fine

This seems like it would be a great tool but the description is wrong in some places. States 3.09”-4.05” in some places and 3.9”-4.05... I don’t have jugs for pistons so this does not work for my application. In hindsight the correct sizing of 3.9-4.05” males much more sense, it can’t go down to 3.09” as it would just be squeezing ovals and that’s a terrible idea.Please fix your descriptions to match the correct title sizing!

Worked very well, no issues, quality product, thx!

Works great!! Wish I had one of these on my last build. Great purchase!

love this thing! once its set just right piston drops in 302 sbf 30 over. use lots of oil with it speeds up engine building do not have move the compressor clamp once its set.