HD Hart Cutters: Sizes 0.07mm up to 0.23mm Use the drop-down menu to select size & quantity. Premium Busch Brand: Specialist rotary precision tools since 1905 | Made in Engelskirchen, Germany. As a jewellery tool supplier, absolute precision & high quality standards are the benchmarks for our products. (Guaranteed quality) This is the most commonly used bur for stone setting. Its shape makes it perfect for cutting seats in prongs and for channel and flush settings. Hart burs can also be used for scoring lines or as an alternative to flywheels for bright-cutting. Names for this shape: Hart Bur, Bearing Cutter, Undercutting Bur, HD Bur We also sell bur lube to help longevity of all burs. Great selection of holders like the rotary style, bur blocks or portable boxes with lids for your burs too. Busch Burs HD Hart Cutters March 17th, 2026ThinnPro
