STS STU65 12.0xD12x30x75
STS STU65 12.0xD12x30x75 is a 65 HRC solid carbide end mill for CNC machining of hardened steel, D2, and tool steel. With a 12 mm diameter and 30 mm flute length, it delivers stable cutting, good surface finish, and reliable tool life. Ideal for die & mould, automotive, and precision engineering applications, it provides consistent performance in high-hardness milling operations.
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Description
STS STU65 12.0xD12x30x75 is a high-performance solid carbide end mill developed for CNC machining of hardened materials up to 65 HRC. This tool is designed to deliver stable cutting performance, good surface finish, and consistent tool life in demanding applications such as die & mould machining, automotive components, aerospace tooling, and precision engineering parts. With a 12 mm cutting diameter, 30 mm flute length, and 75 mm overall length, it offers an excellent balance between rigidity and reach for semi-finishing and finishing operations.
Manufactured from premium micro-grain carbide rod, the STS STU65 end mill provides strong edge toughness, wear resistance, and heat stability, allowing reliable machining in D2 steel, hardened P20, tool steel, high-hardness alloy steel, and other materials in the 55–65 HRC range. The cutting geometry is optimized to reduce vibration and cutting load, helping maintain dimensional accuracy and improving surface quality during high-speed CNC milling.
The D12 shank ensures firm clamping and low run-out, which directly contributes to improved machining stability and longer tool life. The flute design supports efficient chip evacuation, reducing edge chipping and thermal damage while machining hardened steel. This makes the tool suitable for profile milling, slotting, pocketing, and contour machining on CNC vertical machining centers and high-speed milling machines.
This product is commonly searched using keywords such as 65 HRC carbide end mill, carbide end mill tools, CNC cutting tools manufacturers, high performance end mills, precision carbide tools India, die and mould machining tools, best carbide end mill for D2 steel, and CNC tools supplier in India, which helps increase online visibility and SEO strength for industrial buyers.
The STS STU65 12.0xD12x30x75 is an ideal choice for CNC shops seeking a cost-effective yet dependable 65 HRC end mill for routine hardened steel machining. It is well suited for regular production work, mould components, and precision parts, where consistent performance, predictable wear, and controlled machining results are essential.
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