CNC Machining - Titan uses the New Kennametal Mill 4-12 KY - Tangential Shoulder Mill to Rough 4140 Steel. All Speeds, Feeds & Specifications are Documented. Machine is a DMG MORI DMU-50. Workholding by Schunk. Buy the Kennametal KMT Mill 4-12 (Tangential Cutter) from Kennametal direct, Kennametal Konnect or an authorized distributor. Find more info on the Kennametal Tangential cutter here: Kennametal - http://bit.ly/TIKennametal