Busch® Burs - 90° Hart, ISO #021 Fig. 156C, 2.10 mm are expertly crafted from premium tungsten vanadium steel, offering exceptional strength and long-lasting durability. Engineered with precision, these burs deliver smooth, consistent cuts, making them the preferred choice for professional jewelers who require accuracy and reliability. Manufactured in Germany, Busch® burs are renowned for their superior quality and sharpness, essential for detailed and delicate jewelry work.

Featuring a 90° Hart angle, this bur is designed to perform intricate tasks such as prong shaping, edge refinement, and fine finishing across various metal types. With a 3/32" (2.38 mm) shank diameter and an overall length of approximately 1-3/4" (44.5 mm), these burs are compatible with most standard rotary tools, providing ease of use and precise control. The 2.10 mm head diameter offers the perfect combination of durability and finesse for highly detailed applications.

For optimal performance and tool longevity, apply light pressure during use and incorporate a high-quality lubricant to minimize friction and maintain sharpness. Operating speed guidelines are clearly indicated on the packaging to ensure safe and effective use. After each session, clean the burs with a soft cloth to preserve their cutting edge, and always wear protective eyewear to ensure safety.