We are Jinan Terry CNC Tool Co., Ltd. We focus on providing you with stable and reliable machining solutions. We recommend our WNMG080408R-S TR4225 CNC insert. It is specifically designed for the semi-finishing of various steels, including mold steel, 40CrMo, 45# steel, Q235, 20CrMoTi, and more. More Than Just Specifications: The Core Strength in the Details You will find its precise recommended parameters in the technical manual: cutting depth 1-4mm, feed rate 0.2-0.4mm/rev, cutting speed 140-260m/min. These figures are our starting point, not the end. More Than Just Specs: Engineered to Solve Problems Our recommended parameters are a starting point. Here’s the thinking behind them, designed to tackle your real workshop challenges: 1. S tays Sharp, Resists Damage: Our double-edge groove design makes the insert both sharp for a smooth cut and tough to resist chipping. This means consistent performance, even in variable conditions. 2. C ontrols Chips, Protects Surfaces: A major chip evacuation groove (2.7mm x 10mm) ensures chips curl and flow away cleanly. This prevents chips from scratching your workpiece and reduces machine stoppages for cleaning. 3. Built to Last with TR4225: The TR4225 material grade is formulated for excellent wear resistance. It delivers reliable, long-lasting performance across various steels, helping you reduce tool changes and maintain steady production. Insert Pattern Chipbreaker Geometry Description Grade/Coating Description Semi-Finishing S:Univers

