AE-MSS-H and AE-MS-H multi-flute square and radius type end mills for high-hardness steels

The AE-MSS-H is a stub multi-flute carbide end mill available in square style with a 1.5 x D length of cut (neck length of 3 x D). The AE-MS-H is a short multi-flute carbide end mill available in square and radius styles with a 2.5 x D length of cut. The AE-MSS-H and AE-MS-H feature unequal spacing teeth geometry to suppress chattering during machining. Their optimal cutting edge specifications allow for stable milling of high-hardness steels. With the addition of OSG’s original DUROREY coating, the AE-MSS-H and AE-MS-H are able to exhibit outstanding performance in high-hardness steels due to the coating’s excellent toughness, high heat resistance and abrasion resistance characteristics. OSG’s AE-H carbide end mill series for high-hardness steels now includes multi-flute square type end mills, radius type end mills, and ball type end mills to accommodate a wide range of applications and milling methods with superior performance. For more information: