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The APEX TOOL GROUP LLC 21839NN is a 10-inch single-cut bastard mill file designed for sharpening mill saws and circular saws, as well as draw filing and finishing metal surfaces. Its rectangular profile provides consistent contact along straight edges, making it a reliable tool for metalworking tasks in fabrication, maintenance, and tool-sharpening applications. Two square edges allow the technician to cut grooves that match the file's width precisely, and the body tapers slightly in width toward the tip to improve access in narrow slots and confined work areas.
This bastard mill file is suited for trade and industrial settings where accurate sharpening and surface finishing are required. It is commonly used by machinists, millwrights, maintenance technicians, and metalworkers who need a dependable single-cut file for controlled, smooth stock removal on ferrous and non-ferrous metals. The single-cut tooth pattern delivers a cleaner finish with each stroke compared to double-cut configurations, making it appropriate for finishing passes and fine-tuning cutting edges.
Designed as a standard bastard mill file suitable for sharpening mill saws, circular saws, and general metalworking and finishing tasks on flat or slotted surfaces.
Always secure the workpiece in a vise before filing to maintain control and prevent injury. Remove all power from any machinery before sharpening attached blades or cutters. Use a file handle appropriate for the tang size to avoid hand injury during use. Inspect the file for cracks or damage before each use and replace if the teeth are worn smooth or the body is compromised.
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