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The WILLIAMS COMFORT PRODUCTS 4-138-08-1-0 is an 8-inch mill saw file with a bastard cut profile and 46 teeth per inch (TPI). Mill saw files are single-cut hand files designed for sharpening the teeth of crosscut and rip saw blades. The bastard cut grade sits between coarse and second-cut grades, providing an efficient material removal rate while leaving a surface finish suitable for saw tooth sharpening and dressing. This file is a standard bench-trade tool used by maintenance technicians, millwrights, and saw filers working in residential, commercial, and industrial settings.
This file is suited for sharpening hand saws, crosscut saws, and rip saws. The 8-inch length and bastard cut make it a practical general-purpose choice for field sharpening tasks and maintenance work. Tradespersons who regularly maintain cutting tools keep a mill saw file on hand for periodic tooth touch-up and jointing work. Its compact size fits standard file handles and tool pouches.
Designed as a standard replacement or service file compatible with most conventional crosscut and rip saw blade sharpening applications requiring an 8-inch bastard-cut mill file.
Mill saw files are hand tools that require no power source or mechanical installation. Secure the saw blade in a vise before filing to prevent movement during sharpening. Use a file handle appropriate for the tang size to protect the hand and maintain control. Follow safe hand-tool practices and wear cut-resistant gloves when working around exposed saw teeth.
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