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Replace old tools or get new ones with this Harbor Freight coupon for 20% off any one item. Expires Feb. 19, 2011. Valid in store, online, or over the phone. Use coupon code 74990607 online or ...
Harbor Freight Tools, commonly referred to as Harbor Freight, is an American privately held tool and equipment retailer, headquartered in Calabasas, California. It operates a chain of retail stores, as well as an e-commerce business. The company employs over 28,000 people in the United States, [5] and has over 1,500 locations in 48 states. [6] [7]
The company was established in December 1908 [1] as Sharp-Hughes Tool Company when Howard R. Hughes Sr. patented a roller cutter bit that dramatically improved the rotary drilling process for oil drilling rigs.
A hand-held tungsten carbide knife sharpener, with a finger guard, can be used for sharpening plain and serrated edges on pocket knives and multi-tools.. Sharpening is the process of creating or refining a blade, the edge joining two non-coplanar faces into a converging apex, thereby creating an edge of appropriate shape on a tool or implement designed for cutting.
A6, a grade of tool steel which air-hardens at a relatively low temperature (approximately the same temperature as oil-hardening grades) and is dimensionally stable. Therefore, it is commonly used for dies, forming tools, and gauges that do not require extreme wear resistance but do need high stability.
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