10/27/2016

Indexable Shoulder Mills Eliminate Stair-Step Effect

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The issue with many square shoulder indexable milling cutters is the stair-step effect they leave on workpiece walls. Kennametal’s Mill 4 series of indexable shoulder mills features a double-sided, 90-degree milling platform designed to eliminate this issue.

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The issue with many square shoulder indexable milling cutters is the stair-step effect they leave on workpiece walls. Kennametal’s Mill 4 series of indexable shoulder mills features a double-sided, 90-degree milling platform designed to eliminate this issue. The new Mill 4-11 tool in the series is designed for smaller machining centers and accommodates 40-taper CAT and BT, HSK50, and similarly sized spindles.

The cutting tool’s free-cutting capabilities are said to make it ideal for successful metal removal in less-than-rigid setups and on light-duty machine tools, multitaskers and live-tool lathes. It offers the same insert design as its larger cousin, the Mill 4-15, but is 24-percent shorter and 34-percent narrower. With an 11-mm (0.433") maximum cut length, this addresses the needs of those job shops and manufacturers producing smaller parts and part features while still offering high metal removal rates and excellent tool life, the company says.

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