Sait 45005 SC1, 1/4X5/8X1/4 Tungsten Double/Alternate Cut Carbide BurPart # 45005Double Cut (Alternate Cut), Manufactured with cuts made on the left and right Spirals, this design produces a finer finish on material producing smaller chips/slivers. The Double Cut offer much smoother operation and greater tool control.Sait 45005 Features: Series Tungsten Carbide Burs Application Double Cut (Alternate Cut) Type SC1 Diameter 1/4" Length Shank Diameter 1/4" Max RPM 22,000