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Busch Cup Bur
Busch Burs-the most famous name in jewelers burs. Busch brand cup burs are available in a wide range of sizes, from ultra-small .8mm up to 9 mm. These tungsten vanadium steel burs are made to ultra high precision tolerances. Sizes under 4.0mm are sold in packages of six only-sizes 4.0mm and above are available individually.
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