Round files are machinist’s files and, just like half round files, they can be used for creating semicircular grooves, finishing and deburring concave surfaces. They are often used in jewellery making to create detailed patterns in bracelets.
They are also known as rat’s tail files, as they both look similar!
What are the characteristics of a round file?
Cross section
Round files have a circular cross section.
Profile and cut
They are tapered in width and thickness and can be single or double cut.
Their taper allows them to be used to enlarge round holes.
As they have such narrow points, they can be used in sculpting and jewellery making to finish the detail on fine carving work.
Size
Round files are usually available in lengths from 100mm (4 inches) to 350mm (14 inches)