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The WILLIAMS COMFORT PRODUCTS 1-230-12-3-0 is a round file measuring 12 inches in length, designed for smooth-cut filing applications at 36 teeth per inch (TPI). Round files are used to deburr, enlarge, and refine circular or curved openings in metal, plastic, and similar materials. At 0.529 pounds, this file is lightweight enough for extended hand use while maintaining the rigidity needed for controlled material removal. It is a standard hand tool used by HVAC technicians, plumbers, electricians, and general tradespeople during fabrication and fitting tasks.
This round file is suited for trade applications where precise shaping or smoothing of holes and curved surfaces is required. Common use cases include enlarging conduit knockouts, refining pipe openings, deburring sheet metal, and fitting gaskets or seals. The smooth-cut 36 TPI tooth configuration removes material gradually, making it appropriate for finish work where surface quality matters and aggressive stock removal is not the goal.
Designed as a general-purpose round file compatible with standard hand-filing tasks across HVAC, plumbing, electrical, and mechanical trades where smooth-cut round files are required.
Hand files should always be fitted with a proper handle before use to prevent injury from the tang. Work should be secured in a vise or clamp to allow controlled, consistent strokes. File in one direction only, lifting on the return stroke to preserve tooth sharpness. Always wear safety glasses when filing metal to protect against dislodged particles.
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