M18 Fuel™ Barrel Grip Jig Saw (Tool Only), 18 V, Lithium-Ion, 0-3500 SPMPowerstate brushless motor provides increased SPM and the power to cut hard materials, including hardwoods and metals Redlink Plus Intelligence, the most advanced system of cordless power tool electronics, provides optimized performance and overload protection using total system communication between tool, battery, and charger Redlithium battery technology provides superior pack construction, electronics ,and performance to deliver more work per