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What is a millenicut file?

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A DIYer shaping a piece of metal with a double cut file Millenicut files are used for shaping material.
A piece of aluminium, a soft metal that can easily clog files if they are not undercut Their tooth configuration enables them to work on a wide range of different metals, including softer ones like aluminium, brass, bronze and copper. This is because the regular gaps in the teeth allow waste material to escape more easily.

What are the characteristics of a millenicut file?

Diagram of flat and half round cross sections

Cross section and profile

Millenicut files are usually available as flat or half round files. They are most often blunt, but can be flared in some instances (widening towards the tip).

An example of a file with millenicut teeth


Millenicut files strongly resemble single cut files.

Diagram to show where the chip breakers are located on a millenicut file They are characterised by one or two parallel rows of grooves cut into the surface of the file, right through its teeth.
Image to show how a chip breaker works These grooves act as chip breakers, forcing chips to break against the edge of the next tooth along in the row.
Image of a DIYer removing material quickly using a coarse carving float This helps to prevent clogging and also gives the file a high removal rate, i.e. it can wear a surface down quickly.
An indication of the range of lengths in which millenicut files are usually available


Millenicut files are usually available in lengths from 200mm (8 inches) to 350mm (14 inches).

Image of a millenicut file being measured for coarseness, which will result in it being classified with a number of teeth per inch

Swiss or American?

Millenicut files are neither Swiss nor American pattern cut. Their coarseness is instead measured in teeth per inch (tpi).

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