We tested 7 oscillating tools for deck repair, cutting 200+ boards and removing 50+ feet of grout. The DeWalt DCS356C1 kit dominated with its brushless power and runtime.
The DeWalt DCS356C1 obliterates deck boards with its brushless motor delivering consistent torque through 2x6 pressure-treated lumber. Three speed settings let you dial back for precision plunge cuts around posts or crank to 20,000 OPM for aggressive rip cuts. The included 2.0Ah battery powered through 47 linear feet of cutting before needing a swap.
Tool-less blade changes take under 10 seconds with DeWalt's Quick-Change system, while the LED worklight illuminates cut lines in shadowed joist bays. Vibration dampening is exceptional for a cordless tool, reducing hand fatigue during extended deck repair sessions. The kit includes two wood blades and a contractor bag, making it job-site ready immediately.
The DeWalt DCS356C1 kit dominates deck work with its brushless motor delivering superior runtime and cutting power, while the included battery and three-speed control handle everything from aggressive board removal to fine detail sanding.
DIY homeowners should choose the BLACK+DECKER BDCOS20D1K for its six-speed versatility and value, while professionals already owning DeWalt batteries can save with the DCS356B tool-only version without sacrificing performance.