This Archer 20" guide bar is a very high quality professional replaceable tip sprocket nose guide bar.  The bar uses a 3/8" pitch .050 gauge saw chain with 72-drive links. This guide bar works on the large Echo models like:  

Special Offer, you can add a matching professional full chisel chain, or a full chisel skip-tooth chain or even a ripping chain.  Please see our listing number 385691920975 for this special offer.

CS-451, CS-452, CS-5001, CS-501, CS-510EVL, CS-550, CS-5500, CS-550EVL, CS-590, CS-60, CS-600, CS-600P, CS-601, CS-602, CS-610, CS-610T, CS-620P, CS-620PW, CS-650, CS-501EVL, CS-670, CS-6700, CS-6701, CS-6702, CS-680, CS-660, CS-702, CS-706, CS-60S, CS-500EVL, CS-8001, CS-800P, CST-610, CS-750, CS-750EVL, CS-650 EVL, CS-701, CS-8000

This guide bar also works on Poulan models 203, 245, 3400, 360, 361, 3700, 375, 3800, 3900, 395, 400, 4000, 4200, 4400, 450, 4900, 5200, 5400, 5500, 670

John Deere: 055SV, 50AV, 50V, 51SV, 55V, 60V, 65, 65SV, 66SV, 70V, 800V, 80EV

The guide bar replaces Oregon part number 200RNDD176.

Note: This solid steel guide bar includes a replaceable sprocket nose tip (not Oregon-made), but an Oregon replacement tip is compatible.

Archer chainsaw chains, guide bars and chainsaw accessories are very quality products and are available worldwide.