After my last week's confusion on number of chain drive links with bar stamped 45 and chain wrapper stating 44, I tried an Oregon T44 Versa series chain I had for my Echo 2620 polesaw and easily fit with plenty of adjustment left. Not sure if 45 DL would run out of adjustment before chain life gone. Found Stihl PS63 44 on Ebay and ordered one. This is a full chisel "yellow "chain in my preferred brand, box stamped made in Switzerland with Oregon being a close second choice. Put Stihl on today and fit fine. Didn't make any cuts but fits just like the Oregon. Will say Stihl a little more difficult to get between clutch drum and plastic housing but was able to jiggle in gap. Cutters may be just a hair taller. Know Amazon and Ebay full of china made chains for less than $10 but the Stihl and Oregon chains just seem to last longer and stay sharper longer