Product details:

Solid Carbide Router Bit Perfect for cutting aluminum, brass, copper and other non-ferrous metals. - Bits are made according to strict tolerances from an exclusive carbide grade and polished to a mirror finish. - Mirror Finish: Razor sharp cutting for effortless chip removal Helps prevent chip re-welding or adering to the tool Extended tool life Exceptional cut quality - D 1/4, B 7/8, d 1/4, L 2-1/2 Max RPM: 35,000For Aluminum cutting please lubricate. recomended feed arte for aluminum is 3 meters/min or 120 inch/min at 18,000 RPM