STIHL Guide Bar 18"/45cm Rollomatic - 3005 008 4717

Engineered for precise cutting alignment and enhanced operator safety, the STIHL Guide Bar 18"/45cm Rollomatic replaces worn rails while maintaining optimal chain tension and minimizing kickback force. Key Features Rollmatic Recessed Oil Groove: channels bar oil directly to the contact surface between chain and rail to reduce friction and extend component life Low-Profile Configuration: lowers the center of gravity and reduces impact severity during unexpected binding events Sprocket Nose Mechanism: distributes cutting load across rotating pinions instead of static side plates to prevent premature wear Anti-Vibration Mounting Holes: shaped cutouts isolate engine oscillations from the operator’s hands during continuous operation Electro-Galvanized Surface: corrosion-resistant plating shields the metal matrix against sap, moisture, and abrasive debris Product Details Manufacturer Part Number: 3005 008 4717 Total Length: 18 inches (45 centimeters) Chain Pitch: 0.325 inch Bar Gauge: 0.050 inch Drive Link Count: 40 Cross-Section Material: chrome-vanadium forged steel hardened for torsional stability Mounting Style: rear-tang attachment compatible with standard STIHL clutch housing designs Compatibility STIHL MS 250, MS 251, MS 290, MS 291 STIHL MS 361 Units originally equipped with 0.325-inch pitch chains requiring replacement due to tip damage, hook loss, or excessive lateral flex Requires installation of matching low-profile rollomatic saw chains and recalibration of the automatic oiler pump stroke