New HWLB HMWCOAT 2 Flutes Long Neck Ball End millsNovember 22, 2023 in End Mills The new HWLB, with its innovative new coating, offers superior wear resistance for a wide range of applications from pre-hardened steels to hard materials up to 70HRC. HWLB - 2 Flutes Long Neck Ball End Mills: HWLB - 2 Flutes Long Neck Ball End Mills