How tosharpen circular sawblades by hand

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Grade GC4425 is designed for improved wear resistance, heat resistance, and toughness. Both it and GC4415 can be used for finishing to roughing in applications with continuous cuts and light interruptions.

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Sandvik Coromant has upgraded its range of turning inserts for machining ISO P steels with two new carbide grades, GC4415 and GC4425, designed for external and internal machining of low-alloyed and unalloyed steels.

GC4415 is designed to complement GC4425 when enhanced performance and more heat resistance are needed. In addition, the materials’ new post-treatment has been found to boost performance in intermittent cutting operations, avoiding any sudden breakages and enabling both insert grades to outperform over a broad application range, the company states.

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The grades are suitable for manufacturers operating in mass and batch production setups machining low-alloyed (P 2.1 to 2.6) and unalloyed (P 1.1 to 1.5) steels, respectively.