The Evolution S4SCT-Li Cordless Surface Conditioning Tool is built for metalworkers who need fast, controlled surface preparation without the aggression of traditional grinding. Designed for stripping, sanding, deburring, brushing, and finishing, it delivers a cleaner, more consistent linear finish while following the contours of the workpiece for improved results on flat and curved surfaces alike. Its powerful 20V brushless motor provides stall-free performance and extended runtime, while 6 variable speed settings give you the control to switch from rapid material removal to finer finishing work. Supplied with both a 60-grit flap stripping drum and 280-grit finishing drum, it's ready for surface prep straight out of the box. With independent handle and guard adjustment, soft start technology, electronic brake, and universal compatibility with a full range of 4-3/4" accessory drums, the S4SCT-Li is a versatile addition to any metal fabrication setup – and part of Evolution's expanding EXT cordless blue range. Features Powerful cordless performance- The 20V brushless motor delivers consistent stall-free power with improved efficiency and extended runtime, while soft start technology reduces start-up kick and mechanical stress for longer tool life. Controlled surface preparation- Six variable speed settings let you adapt performance for everything from aggressive stripping and sanding to lighter brushing, deburring, and finishing, giving greater control across every stage of metal fabrication. Improved visibility and handling- The independently adjustable front handle and drum guard allow you to optimize grip position, visibility, and access, making it easier to work on flat, curved, and awkward surfaces with confidence. Reduced fatigue on longer jobs- An ergonomic rubber grip handle and lock-on trigger improve comfort and reduce hand fatigue during extended periods of surface preparation and finishing. Ready to work straight out of the box- Supplied with a 60-grit flap stripping drum and 280-grit finishing drum, the S4SCT-Li is ready for immediate stripping, sanding, and finishing tasks. Fast and simple drum changes- An arbor lock button and onboard hex key storage make changing drums quick and straightforward, helping minimize downtime between tasks. Universal drum compatibility- Compatible with all 4-3/4" diameter X 4" wide surface conditioning drums, giving you access to a wide range of sanding, stripping, finishing, and polishing accessories. Safer, more controlled stopping- The electronic brake stops the drum within seconds of releasing the trigger, improving control and reducing unnecessary spin-down time. Built for demanding workshop use- Heavy-duty all-metal gearing, a metal gearbox housing, and mesh dust guards protect internal components and help extend tool life in harsh fabrication environments. Part of the Evolution EXT cordless system- Expand your metal fabrication setup with Evolution's growing EXT cordless blue range. Built to give modern metalworkers more power, flexibility, and tool choice on one battery platform. 3-year warranty included- Built for professional use and backed by Evolution's 3-year warranty for added confidence and peace of mind. Specifications Machine Motor Life (Minimum) 80H Motor Type Brushless Runner Voltage 20V d.c. No Load Speed: 500 – 2750 min⁻¹ Barrel Diameter 4-3/4″ Barrel Length 4″ Weight 5.1 lb Speed Settings 6 Soft Grip Yes Barrel Lock Type Hex Key Trigger Type Lock-On Auxiliary Handle Bale Handle Soft Start Yes Product Dimensions 8-3/16 x 16-13/16 x 8-13/16" Noise & Vibration Data Parameter Value Sound Pressure Level (LpA) 77 dB (A) Sound Power Level (LwA) 85 dB (A) Uncertainty (KpA & KwA) 3 dB (A) Vibration ah 5.69 m/s² Vibration K 1.5 m/s² Items Included Instruction Manual 60-Grit Flap Stripping Barrel 280-Grit Finishing Barrel