STS PD65 12.0xD12x45x100 is a 65 HRC carbide end mill

Description

STS PD65 12.0xD12x45x100 is a high-performance solid carbide end mill developed for CNC machining of hardened materials up to 65 HRC. This normal quality 65 HRC end mill is designed to deliver reliable cutting performance, consistent tool life, and good surface finish in die & mould machining, automotive components, aerospace tooling, and precision engineering applications. With a 12 mm cutting diameter, 45 mm flute length, and 100 mm overall length, it offers the ideal balance of reach and rigidity for both semi-finishing and finishing operations.

Manufactured from high-quality micro-grain carbide rod, the STS PD65 end mill provides strong edge stability, wear resistance, and heat resistance, enabling stable performance during high-speed CNC milling. The tool is suitable for machining D2 steel, hardened P20, tool steel, high-hardness alloy steel, and other 55–65 HRC materials commonly used in mould and die manufacturing. Its geometry is optimized to reduce cutting forces, control vibration, and maintain dimensional accuracy, making it a dependable choice for everyday hardened steel machining.

The D12 shank ensures secure clamping with low run-out, improving tool stability and surface quality. The flute design supports efficient chip evacuation, reducing the risk of edge chipping and premature wear when machining hardened materials. This makes the tool suitable for profile milling, slotting, pocketing, and contour machining in CNC vertical machining centers.

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The STS PD65 12.0xD12x45x100 is a practical solution for CNC shops looking for a cost-effective, normal-quality hardened steel end mill that delivers consistent results without compromising machining stability. It is well-suited for regular production work, mould components, and precision parts, where controlled performance and predictable tool life are required.