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Busch Burs-the most famous name in jewelers burs. Busch brand cone burs are available in a wide range of sizes, from 0.6 mm up to 5.0 mm. These tungsten vanadium steel burs are made to ultra high precision tolerances. Sizes under 4.0mm are sold in muliples of six only-sizes 4.0mm and above are available individually.
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