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Cutting Tools Pages 59 to 76 High-Performance Carbide End Mills Emuge Corp. has introduced Top Cut, a new series of high performance carbide end mills. Offered in a wide range of metric and inch sizes, styles and geometries, Top Cut provides for maximum versatility in milling a broad array of materials, including hard steel at up to 55 HRC, the company states. Ideal for mold and die as well as general milling applications, Emuge's Top Cut end mills feature a new and unique, variable helix flute technology and a newly developed variant of the high heat resistant TiAlN coating. These features, in addition to internal coolant capabilities, enable highly efficient material removal with minimal vibration and wear. Emuge's Top Cut End Mills are made of micrograin carbide, featuring proprietary relief ground cutting edges, making Top Cut uniquely capable of performing roughing as well as finishing cutting operations, adding to the versatility of these tools, according to the company. Emuge Top Cut End Mills are available in a full range of inch and metric sizes, lengths, and in various types—over 600 new items in total. For more information from Emuge Corp. of West Boylston, MA, phone 508-595-3600 or visit emuge.com Helical Cutting Edge Insert Line The ISCAR HELIQMILL 390 line is an expansion of the HELIMILL line, which features a broad spectrum of insert geometries and sizes. Such a rich variety ensures success of the original HELIMILL in practically all shoulder milling operations, the company reports. The new line offers a triangular insert with three cutting edges. The length of the cutting edge of an insert with three edges is the same as in an insert with two: the new inserts are available with 10 and 15 mm cutting edge lengths. The insert with three edges has a stronger structure and its clamping into the pocket features high rigidity. The advanced cutting geometry of the new insert results in a precise 90° shoulder and a wiper flat provides excellent surface finish. The HELIQMILL 390 tools have impressive ramping-down abilities. The new line incorporates all the advantages of HELIMILL; however, the added advantages of an extra cutting edge, extra-strong design, extra reliability and extra accuracy lead to extra performance, the company notes. This provides productive milling of true 90-degree in combination with an improved cost per cutting edge. For more information from Iscar of Arlington, TX, phone 817-258-3200 or visit iscarmetals.com moldmakingtechnology.com 75