D: Denotes a premium Rigid Double-Clamp retention mechanism. This design uses a top clamp that simultaneously anchors the carbide insert downward and pulls it backward into the pocket seat to prevent movement under immense loads.
D: Engineered specifically to carry standard 55° Rhombic (Diamond-shaped) negative indexable inserts.
N: Utilizes a Neutral 62.5° Tool Cutting Edge/Lead Angle on both flanking sides of the head.
N: Designed with a 0° Normal Clearance/Relief Angle (meaning it utilizes negative inserts that rely on a built-in relief angle profile).
N: Indicates a Neutral Tool Hand Orientation. It is balanced perfectly on the center line, allowing it to cut equally well moving forward toward the headstock or backward away from it.
4040: A massive industrial square shank format measuring exactly 40 mm height × 40 mm width. This immense cross-section provides the structural mass needed to completely suppress chatter and deflection during high-horsepower deep cuts.
T1508 / S15: Represents the standard overall tool shank length (typically 250 mm) coupled with an insert pocket optimized to seat 15 mm cutting edge length inserts (such as standard DNMG 150608 or DNMG 150612 profiles).
🎯 Primary Application Environment
Multi-Directional Machining: Because it carries a balanced 62.5° lead profile on both sides, operators utilize this single tool to turn profiles, plunge outward, sweep deep V-grooves, face, and cut intricate steep chamfers without switching tool blocks.
Heavy Forging & Casting Roughing: The combination of a 40x40 steel shank and double-clamping makes it an industry staple for taking deep, punishing roughing cuts on high-tensile steels, stainless steel shafts, and cast iron parts.
