Using a knurling tool on a lathe, you can cut diamond patterns or a series of straight lines onto a smooth, cylindrical metal surface. Hand tools, such as metal flashlights, screwdrivers and darts, are among the kinds of objects that benefit from knurling. The technique provides a textured surface for fingers and hands to grip. It also can enhance the object's design.
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Diamond knurls are the most common lathe knurling tools. The patterns they create provide the best traction for handling. The knurls come in three pitches: 14, 21, and 33, which produce coarse, medium, and fine diamond patterns.
Also known as straight knurls, these tools create a series or helix of straight lines that provide torsion between two objects, like a screw and a bolt.
These tools generally are used for items that have a plastic mating component. The mating of the components is easy, but the components often are difficult to take apart.
This kind of knurling tool creates straight lines in an angular pattern, useful for giving traction.
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