Barrette files are machinist’s files that are easily identified by the fact they are only cut on one face, meaning there is a large, safe surface that is referred to as the ‘back’.
This means only one part of the file can cut a workpiece, leading to a great degree of security against mistakes.
What are the characteristics of a barrette file?
Cross section
Barrette files usually have trapezoid cross sections, but sometimes they may be triangular.
Profile
Barrette files taper in both width and thickness, which allows them to access small spaces.
Cut
They are double cut, but only on the flat face. The uncut face is referred to as the ‘back’.
This means that they can be used for filing keyways, internal angles in slots and for general finishing and deburring, without fear of accidental wear to another surface during the filing process.
When combined with their taper, the fact that only one of their faces is cut makes them perfect for precision filing on parts such as gears.
Size
Barrette files are usually available in lengths of 75mm (3 inches) to 200mm (8 inches).