Changzhou SDK Precision Technology Co.,Ltd

SDK Tool today announced the release of its latest Carbide Ball Nose 2 Flute HM End Mill HRC68, engineered for high-precision finishing on hardened steel. Featuring a 45° helix angle, advanced Balzers DR coating, and ultra-high machining accuracy of ≤0.005 mm, the new tool is built for demanding milling applications requiring stability and durability.

Manufactured using Germany K44 premium carbide with 0.4 μm grain size (Co 12%, WC 88%), the cutter delivers exceptional hardness and wear resistance. It is optimized for finishing operations on hardened steel with workpiece hardness ≤ HRC60, ensuring reliable performance across mold, die, and automotive applications.

Thanks to its enhanced coating and material structure, the new HRC68 series offers a tool life 2–3 times longer than common HRC65 end mills, significantly reducing tooling cost and downtime for end users.