Hitachi Tool introduces the Epoch Deep Evolution Series End Mills designed for high-precision and high-speed milling of deep rib grooves, walls, slots and corners. The new small diameter square nose and ball nose end mills feature an under neck length of up to 20xD. The compound neck shape provides improved breakage resistance while suppressing deflection during deep milling, says the company. The ball end mills feature a high-strength flute shape for improved chip removal while the square end mills offer improved cutting stability, say Hitachi Tool. Available in sizes from 0.1 to 6.0mm.