5 Pack Chainsaw Chains Fits Stihl 18 Inch .325" Pitch .063" Gauge 68 Drive Links SPECIFICATIONS Fit Chainsaw Bar Length: 18" Pitch: .325" Gauge: .063" Drive Links: 68 Chainsaw Chains Fit 18" chainsaw Fit for STIHL 025, 025 C, MS 230, MS 230 C, MS 230 C-BE, MS 241C-M, MS 250, MS 250 C, MS 250 C-BE, MS 251, MS 251 C, MS 251 C-BE. (2022 and newer MS250 may have a .050" gauge bar - Make sure your bar has .063" gauge.) * Ensure your model has a .325" sprocket,.063" gauge like this chanisaw chain. Chainsaw Chains Replacement for STIHL 18”Chainsaw Chain 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. CHAIN FEATURES: Chainsaw Chains for 18 Inch, Germany steel, Durable, Cuts smoothly and Sharp, Low kickback ANSI Standards, Japanese chrome-plated technology, High hardness, Practical, semi-chisel, Saw chain protective oil design, resists corrosion, Easy to install.