Nicholson 07657NN Lathe File 10 in Single Bastard Cut

Product Description

The NICHOLSON 07657NN is a 10-inch American-pattern lathe file with a single-cut, bastard-grade tooth pattern. Lathe files are engineered for draw-filing operations on a metal lathe, producing smooth finishes on cylindrical workpieces. The single-cut configuration removes material in a controlled, predictable manner, making it well suited for finishing passes on steel, cast iron, and other metals. A standard tang accommodates most commercially available file handles. Machinists, toolmakers, and skilled tradespeople are the primary users of this type of file. The bastard cut is the coarsest option in the single-cut range, offering a balance between metal removal rate and surface finish quality.

This lathe file is intended for draw-filing on lathes and bench work involving metal and wood. The 10-inch length suits typical shop use on medium-diameter workpieces. The non-flexible body keeps the cutting surface rigid across the full stroke, which is important for maintaining consistent contact on round stock. It is a standard hand-tool addition to any machinist or metal fabrication environment.

Key Features

• 10-inch overall length with a full 10-inch cutting surface
• Single-cut tooth pattern for controlled material removal and smoother finish
• Bastard cut coarseness — coarser than second-cut, suited for initial filing passes
• Rigid, non-flexible body maintains flat contact across the stroke
• Standard tang for use with separately purchased file handles
• Suitable for metal and wood applications

Compatibility

Designed as a standard American-pattern lathe file for use in machinist, metalworking, and general shop applications where draw-filing on a lathe or bench vise is required.

Installation Notes

Always fit a proper file handle onto the tang before use to prevent hand injury from the exposed point. Secure the workpiece firmly in the lathe chuck or vise before draw-filing. Files are designed for push-stroke or draw-stroke cutting — do not apply lateral bending force, as files are brittle and may snap. Keep files dry and store them separately to avoid contact with other metal tools, which dulls the teeth prematurely.