Ok so this one I went a little stupid with. Haha ya I machined the base with a orbital sander and finished it on a pice of glass with sand paper. Squish .0018 or however that's supposed to be written i can never remember if it's 2 zeros or one. 28 inch full comp full chisel.63?? If I'm remembering correctly. It needs to be sharpened. Owner is getting a brand new chain for it. For you information this saw was originally my saw. Buddy of mine loved it so I gave it to him. He drives truck so I put a big ole "stack pipe" on it. No it's not that big all the way through