STS STH65 10.0xD10x40x100
STS STH65 10.0xD10x40x100 is a 65 HRC solid carbide end mill for CNC machining of hardened steel, D2, and tool steel. With a 10 mm diameter and 40 mm flute length, it offers stable cutting, good surface finish, and reliable tool life. Ideal for die & mould, automotive, and precision engineering applications, it ensures consistent performance in high-hardness milling operations.
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Description
STS STH65 10.0xD10x40x100 is a high-performance solid carbide end mill designed for CNC machining of hardened materials up to 65 HRC. Built for stability and accuracy, this end mill is ideal for die & mould machining, automotive components, aerospace tooling, and precision engineering applications where consistent surface finish and dimensional control are essential. With a 10 mm cutting diameter, 40 mm flute length, and 100 mm overall length, it provides extended reach while maintaining rigidity—perfect for deep pockets, profiles, and finishing passes in hardened steels.
Manufactured from premium micro-grain carbide rod, the STS STH65 series delivers excellent edge strength, wear resistance, and thermal stability, enabling reliable performance during high-speed CNC milling. The tool performs consistently on D2 tool steel, hardened P20, alloy steels, and other materials in the 55–65 HRC range commonly used in mould and die production. Its optimized cutting geometry minimizes vibration and cutting forces, helping maintain tight tolerances and a smooth surface finish even in demanding conditions.
The D10 shank ensures secure clamping with low run-out, improving machining stability and reducing chatter during long-reach operations. Efficient flute design supports smooth chip evacuation, limiting heat buildup and reducing the risk of edge chipping during continuous cutting cycles. This makes the tool suitable for profile milling, pocketing, slotting, and contour machining on CNC vertical machining centers and high-speed milling machines.
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The STS STH65 10.0xD10x40x100 is a dependable choice for CNC workshops seeking a cost-effective yet reliable hardened steel end mill. It is particularly suitable for regular production work, mould components, and precision parts, where consistent cutting behavior, controlled wear, and predictable results are essential for productivity and quality.
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