【 4 PACK 12 INCH CHAIN 】 3/8" LP Pitch .050" Gauge 45 Drive Links, please check the length and drive links. Suitable for most 12-inch pole saw. 【 HOW TO DETERMINE YOUR CHAIN SIZE 】 Chainsaws can be equipped with different guide bars. When selecting a chain for your chainsaw, in addition to the model and length, make sure that the pitch, gauge and number of drive links are correct. You can usually find them on the guide bar side stamp or in the owner's manual 【Sharp, Robust, Efficient and Durable】GSSHBR chainsaw chains is deeply hardened, not easy to break, smooth and fast cutting, minimal rebound, light weight, high strength, high wear resistance, durability and hardness 3pcs 12inch 050 45