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The OREGON TOOL S40 is a semi-chisel chainsaw chain built for 10-inch guide bars on small, low-powered saws up to 42 cc displacement. Hard-chromed cutters deliver maximum wood bite while the precision, heat-treated construction cuts smoothly even when encountering debris. Hardened rivets and a tough chrome outer layer reduce wear and minimize how often the chain needs adjustment. The integrated Lubri-Tec automatic oiling system channels oil to critical chain components during operation, extending service life and reducing downtime. At 0.44 pounds, the S40 is lightweight and straightforward to install, making it a practical choice for landscapers and property maintenance professionals who run small saws regularly.
The S40 is sized for 10-inch bars and is intended for chainsaws from any brand that run a 3/8 inch pitch and a .050 inch (1.3 mm) gauge. It is suited to residential and light commercial landscaping applications where operators use compact, lower-powered saws for extended periods. The low-kickback, low-vibration design helps reduce user fatigue during prolonged cutting sessions. This chain must be paired with a narrow-kerf bar, consistent with narrow-kerf chain design requirements. It is a solid option for tree trimming, light limbing, and general property cleanup with saws rated up to 42 cc.
Compatible with any chainsaw brand running 3/8 inch pitch and .050 inch (1.3 mm) gauge. Designed for 10-inch guide bars on saws up to 42 cc. Must be used with a narrow-kerf designed bar.
Chain installation and tensioning should be performed by a qualified operator following the saw manufacturer's service guidelines. Power down and disconnect the spark plug before handling the chain. Always wear cut-resistant gloves when handling or installing chainsaw chain. Verify bar groove width matches the .050 inch gauge before fitting, and confirm chain pitch matches the sprocket before operating the saw.
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