The High Speed Steel Burs, Size 6 (1.9 mm) Heart 45° is a precision-crafted cutting tool designed for professional jewelers who require accuracy and dependability in fine stone-setting and delicate metal shaping. Made from premium High Speed Steel (HSS), this bur offers exceptional edge retention, high hardness, and superior cutting performance even during continuous high-speed use.
This bur features a 45° heart-shaped profile, making it ideal for creating stone seats, undercuts, relief cuts, and refined detailing. The Size 6 (1.9 mm) diameter provides enhanced precision for smaller settings, intricate design work, and tight spaces where maximum control is needed. Jewelers use this size extensively for micro stone-setting, detail refinement, and shaping narrow contours.
Designed with spiral-cut flutes, it ensures smoother cutting, reduced debris buildup, and cooler operation. This prevents clogging and preserves the bur’s sharpness over time. Equipped with a standard 3/32″ (2.35 mm) shank, it fits seamlessly into most professional jewelry rotary tools, including flex shafts and micromotors.
Ideal for stone setters, engravers, and bench jewelers, this high-speed heart bur delivers outstanding stability, precise control, and clean finishing results in both soft and hard metals.
Key Benefits
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High Durability: High Speed Steel ensures long-lasting sharpness and exceptional wear resistance.
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Precision 45° Heart Geometry: Perfect for small stone seats, undercuts, and fine detailing.
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Smooth Cutting Control: Spiral flutes ensure efficient chip removal and reduce heat buildup.
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Accurate 1.9 mm Size: Ideal for micro stone-setting and intricate metal shaping.
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Standard 3/32″ Shank: Compatible with all major rotary jewelry tools.
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Professional Finish: Produces clean contours and precise seats with minimal finishing effort.