NOS OEM Vintage McCulloch 20" Bar (D176 Mount .325 Pitch .050 Gauge)  Part Number 218924 Due to it being Vintage it is SOLD AS IS These have never been mounted on a Chainsaw These will fit D176 Mount saws.  They require a .325 pitch .050 Gauge Chain You can chance the chain sprocket on your saw to .325 pitch to use this bar os saws such as... McCulloch 10-10, PM850, PM700 Etc with D176 bar guide mounts.  I have a huge inventory of NOS McCulloch parts. Save me as a seller to see whats next. Questions? Ask me Thank You Max the Mac Man