The BRAND NEW TITAN Step Drill Bit Set includes 3 pieces ranging in size from 1/8" to 1/2", 1/4" to 3/4", and 3/16" to 1/2". Manufactured by Titan, the drill bits are specifically designed for precision and efficiency in drilling tasks. The step design allows for smooth and consistent drilling, making it a valuable addition to any power tool collection, especially for automotive and motor-related projects. The manufacturer part number 16503 ensures easy identification and organization of the set.