Iwaki City, Fukushima Prefecture – June 2026 – Tungaloy Corporation (President & CEO: Satoshi Kinoshita, Headquarters: Iwaki City, Fukushima Prefecture) announces a significant expansion of AH8015 grade inserts for its TungForce-Rec series of high-efficiency, high-precision shoulder milling cutters. AH8015 provides excellent performance in machining cast iron, difficult-to-cut materials, and hardened steels.
Challenges and Trends
In machining operations for automotive components, dies and molds, industrial machinery, aerospace, energy, and other industries, part shapes are becoming more complex. At the same time, workpiece materials are becoming more diverse. The use of difficult-to-cut materials, such as Ti-alloys heat-resistant alloys and hardened steels, is increasing. When machining these materials, cutting-edge wear, chipping, and fracture can easily occur. These problems may cause unstable tool life and may also prevent users from increasing cutting conditions. For this reason, there is a strong demand for reliable tools that can provide stable and predictable tool life.
Product Overview
The TungForce-Rec series is a shoulder milling cutter line designed for high-efficiency and high-precision machining. It uses uniquely shaped two-corner inserts and is available in four insert sizes: 04, 06, 12, and 18. The series covers maximum depths of cut from 4 to 16.5 mm.
Across all insert sizes, Tungaloy’s original V-bottom insert design and cutter body structure provide high insert clamping rigidity. The series also offers a wide range of chipbreaker options, including the versatile MJ and MM types, as well as AJ and AM types for non-ferrous metals such as aluminum. Together with various insert grades, TungForce-Rec delivers excellent machining accuracy and stable, long tool life in a wide range of workpiece materials and machining applications.
With this expansion, Tungaloy significantly expands the AH8015 insert grade lineup, which is especially suitable for machining cast iron, difficult-to-cut materials, and hardened steels. This enables users in more industries and applications to achieve high-efficiency machining and stable, long tool life.
Benefits and Features
Feature 1: High-rigidity clamping and a wide range of insert options support a broad variety of square shoulder milling applications.
– Four insert sizes — 04, 06, 12, and 18 — cover maximum depths of cut from 4 to 16.5 mm.
– The insert is securely clamped to the cutter body with a single screw by using Tungaloy’s original V-bottom insert design. This provides high cutting-edge rigidity.
– A wide range of chipbreakers and grades is available, from general-purpose applications to non-ferrous metal machining. Corner radii from 0.0 to 3.1 mm are also offered to support a wide variety of machining applications.
Feature 2: Expanded AH8015 insert grade lineup for difficult-to-cut materials and hardened steels
– AH8015 is a PVD-coated grade that uses a high-hardness coating and a dedicated carbide substrate.
– Its Al-rich multilayer coating increases coating hardness while suppressing the propagation of micro-cracks. In addition, improved adhesion between the coating and carbide substrate helps prevent coating delamination. These features greatly reduce the progress of cutting-edge wear, chipping, and fracture.
– As a result, AH8015 provides high reliability and stable, long tool life even in machining difficult-to-cut materials, hardened steels, and cast iron, where cutting edges are exposed to high loads during machining.
