Busch® Burs - 90° Hart, ISO #031 Fig. 156C, 3.10 mm are crafted from high-grade tungsten vanadium steel for exceptional strength and durability. Each bur is precisely engineered to deliver smooth, even cuts, making it the go-to tool for jewelers who demand consistent, professional results. Manufactured in Germany, these Busch burs are trusted for their quality and sharpness, essential for detailed jewelry work.

Designed with a 90° Hart angle, this bur allows jewelers to perform intricate tasks like prong shaping, edge refinement, and delicate finishes on a range of metals. With a 3/32" (2.38mm) shank diameter and a 1-3/4" (44.5mm) length, the burs fit most standard rotary tools, making them ideal for detailed work. The 3.10 mm bur size ensures high precision, providing the perfect balance of durability and finesse.

For optimal performance, apply light pressure and use with a high-quality lubricant to reduce friction and prolong sharpness. Safe operating speeds are noted on the box, ensuring long-lasting, high-quality results. Always clean the burs with a soft cloth after use to maintain their sharpness, and wear protective eyewear to ensure safety during operation.