Accurate engineering industries manufactures omni mb 100 and 200 boring heads which are readily adaptable on milling and boring machines with spindle bore tapers of size h-30, iso-30, iso-40, and iso-50. All omni boring heads have clearly graduated, hardened lead screws.These heads has threaded back, which can be fitted with interchangeable shanks. The overall length of boring heads is held to a minimum as the space is the key factor. This feature contributes to greater tool rigidity, which in turn assures good finish and accurate bores.