3/8" x 3/4" Type SF3NF Non-Ferrous Tungsten Carbide Bur

Sait 45053 3/8" x 3/4" Type SF3NF Non-Ferrous Tungsten Carbide BurNon-Ferrous (Aluminum) - Type SF. Non-ferrous of aluminum cut burs have a more open, aggressive cut to avoid loading on softer materials. This design provides outstanding stock removal on aluminum, magnesium, copper, soft steel, brass, zinc alloys, hard rubber, most plastics, and non-ferrous metals. These burs provide easy chip flow with little or no clogging. Tungsten Carbide construction for long life and precision cutting. Excellent for confined or hard-to-reach areas. Use for deburring and finishing on ferrous and non-ferrous metals. Shaping and enlarging holes in steel. Removing welds. Smoothing castings. Specifications: Max RPM - (File Diameter - 1/4", RPM1 - 22000, RPM2 - 33000), (File Diameter - 3/8", RPM1 - 18000, RPM2 - 27000), (File Diameter - 1/2", RPM1 - 16000, RPM2 - 24000). Use RPM1 for iron, steel welds, cast iron, tool steels, die steels, bronze, brass and aluminum. Use RPM2 for stainless steel.