Features Application : Suitable for fine and semi-fine milling of stainless steel M materials.For processing steel parts (eg. 4140 alloy steel ) and stainless iron, suitable for material of HRC15 °- HRC45 °，installed on 400R Series End milling holder APMT1604 Milling Inserts Advantage: The cutting edge is sharp, the processing is brisk, and the chip removal is smooth. The cutting edge is specially treated, and the products processed have a high degree of smoothness and a mirror effect. Excellent Milling: High-precision passivation treatment, leading coating process, provide the perfect smooth cutting. A high the thermal shock resistance, long service life. APMT1604 Insert is made of hard alloy titanium plating, wear resistance and incisive blade. Great processing and high quality, provide fast cutting. Specification: Item Type: Milling Inserts Material: Carbide Titanium Blade Hardness: 15-50HRC Whether Coating: Coating Processing Material: Steel, stainless steel, etc. Package List: 10 x Milling Inserts Package List 10 x Milling Inserts