High Speed Steel Cylinder Bur 3.3mm #13 is crafted from premium M2 High-Speed Steel, providing superior durability and a longer lifespan than Tungsten, Vanadium, or Carbon Steel burs. The spiral-cut flutes enhance cutting performance, maintain sharpness, and reduce material loading for efficient work.

Designed for versatile applications, these cylinder burs function like a flat file, allowing rapid material removal. They are ideal for grinding the insides of ring shanks, enlarging ring sizes, and shaping or carving wax models, including ring tube wax designs.

With a 3/32" (2.35mm) shank, this bur fits most jeweler’s flex shaft handpieces and adjustable chucks, making it a standard choice for precision metalworking, jewelry making, and carving tasks.