Makita B-69222 5 3/8" 30T Carbide‑Tipped Max Efficiency Saw Blade - This max efficiency saw blade is the ideal accessory for Makita Cordless Metal or General Purpose Saws (sold separately). Max Efficiency accessories are engineered to deliver optimal run times and performance. Get up to 50% more cuts per charge compared to standard blades. The max efficiency saw blade has an ultra-thin kerf design that provides smoother cuts with less drag on the motor and minimal material loss. Featuring special ATAFR (Alternate Top Alternate Face w/Raker) carbide tips, the saw blade can provide smoother and faster cuts. The blade is expertly tensioned for precision and true cutting.