This is an Archer 12" Carving Hard Tip Guide bar (quarter tip) that is a Universal Mount and is made to fit Echo, Poulan and Stihl chainsaws. The guide bar is made for chain that is 1/4" pitch, .050 gauge with 64 drive links or made for chain that is 3/8LP .050 gauge chain with 44 drive links.
Archer Guide Bars, Archer Chainsaw Chain and Archer Accessories are sold world wide and are known for quality products!