This is an Archer 18" very high quality laminated sprocket nose guide bar that works on Stihl models 024, 026, 028, 029, 030, 034, 036, MS260, MS290, MS291 plus many more.
Note: Your chainsaw must be equipped with a .325 pitch sprocket for this guide bar to work!
The guide bar is .325 pitch, .063 gauge and uses a 74 drive link chain
Archer Saw Chain and Archer Guide Bars are known for quality and sold world wide!