This Evolution Multi-Material Blade has been designed specifically for the Evolution Cordless R165CCS-Li 165mm Circular Saw. Made from premium materials in Japan, and ideal for the construction, professional, and daily use on a construction site. Designed to cut steel, aluminium, wood (even with embedded nails), plastic and more. Specification Diameter 165mm. Bore 20mm. Teeth 18. Kerf 1.7mm. Max. Speed 4,400/rpm.