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The WILLIAMS COMFORT PRODUCTS 1-110-12-3-0 is a 12-inch flat file with a smooth cut profile rated at 36 teeth per inch (TPI). Flat files are single-cut or double-cut hand tools used to remove material, deburr edges, and finish metal or other surfaces with precision. At 36 TPI, this file delivers a fine, controlled cut suited for finishing work where surface quality matters. Trade professionals in HVAC, plumbing, electrical, and mechanical service use flat files for tasks such as dressing pipe ends, cleaning burrs from conduit, and fitting metal components during installation or repair.
This flat file is appropriate for general trade use in both residential and light commercial settings. It is well suited for deburring cut pipe, smoothing rough metal edges on sheet metal ductwork, cleaning threads, and surface preparation tasks where a controlled, fine cut is required. The 12-inch length provides sufficient working surface for most bench and field applications encountered by service technicians and installers.
Designed as a general-purpose flat file suitable for use on metal and other hard materials in standard trade service and installation applications.
Flat files are hand tools used by HVAC technicians, plumbers, electricians, and general mechanical tradespeople. Always ensure the workpiece is securely clamped or stabilized before filing to maintain control and prevent injury. Use a file card or brush regularly to clear filings from the teeth and maintain cutting efficiency. Do not use a flat file on rotating machinery or power tools unless specifically designed for that purpose.
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