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High Speed Steel Burs are known for their hardness & durability. They also stay sharper longer than conventional tungsten vanadium burs. HSS burs are hand fluted which means they may not have the consistency of tv burs. HSS burs have 3/32 shanks and are sold individually. HSS Setting Burs are available in all 33 sizes from 0.9mm to 11.1mm
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