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The most remarkable advantage of the new products is their double sided design which renders both edges applicable. Compared to the positive type, the double-sided negative tools are more economical and even more stable. The new products have achieved good chip control as well due to the originally designed GK chipbreaker for finishing to medium machining. Another great advantage is that the special designed tool holder has no interference with sub spindle likely positive type due to smaller size although negative type. The tools realize stable and high quality machining with PR1005 for free cutting steel material and PR1025 for general steel machining, adapting a special PVD coat featuring anti-oxidation performance and wear resistance, as well as a tougher carbide substrate that improves the constituent materials. The negative insert and original chipbreaker enable high cost efficiency and stability while their cutting force is even equal to the conventional positive inserts.
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