This is an Archer 20" Laser Max Guide bar with a Stellite Hard Tip. The guide bar is .063 gauge and uses a 72 drive link chainsaw chain when using a 3/8" pitch chain. This guide bar fits on Stihl models 024, 026, 028, 029, 030, 034, 036, 038, 040, 041, 042, 044, 045, 046, 048, 056, 064, 066, MS260, MS261, MS270, MS280, MS290, MS291, MS310, MS311, MS341, MS360, MS361, MS362, MS381, MS390, MS400, MS440, MS462, MS460, MS461, MS500i, MS660, MS661 plus other Stihl models.
Archer Saw Chain and Archer Guide Bars are known for quality and sold world wide!