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moldmakingtechnology.com 71 Cutting Tools Pages 51 to 72 Square Shoulder Mills Offer Large Depths of Cut Seco Tools' R220.LN14 square shoul- der mills provide four cutting edges with a 14-mm (0.551") cut- ting edge length to reduce cost per edge while improving performance in demanding applications requiring a large depth of cut. Negative-rake, 7-mm-thick (0.28") inserts provide the robustness needed for heavy cuts in dif- ficult materials, long-reach applications and less stable setups. The standard tools are able to take depths of cut ranging to 14 mm (0.551"), while helical versions are offered in cutting edge lengths for both contouring and slotting applications. The R220.LN14 cutters are particularly well-suited for medium- to heavy-duty applications requiring a 90-degree wall. Inserts are available in six grades: MS2500, a CVD-coated, wear-resistant and tough grade for machining super-alloy materials and high-carbon steels; the tougher 420470; 150060, which is similar to Seco's F40M; 029060, an alter- native to the company's MK1500 with a PVD coating; MP2500, a medium-steel CVD Duratomic grade; and MK1500, a cast iron CVD Duratomic grade. Seco Tools LLC / 248-528-5200 / secotools.com/us Solid Carbide End Mills Feature Pull-Out Protection Haimer's Power Mill solid carbide end mills feature the company's Safe-Lock interface, which is designed to act as a "seatbelt" to protect against pull-out from the holder. The end mill geometries are based on an unequal flute and helix design for chatter-free machining. All tools are coated with PVD and feature a smooth surface for improved chip evacuation. The Power Mill line includes cutting diameters rang- ing from 2 to 20 mm and to 1". Tools are available with three, four and five cutting edges and with multiple lengths of cut. In addi- tion, different cutting edge solutions such as sharp, chamfer and radius edges are offered, in addition to a roughing geometry with a cord profile. Haimer USA / 630-833-1500 / haimer-usa.com