Durston 15242628US PrecisionFit Ring Sizing Set - Steel & Aluminum Ring Mandrels & 31 Ring Set 1-16 USA Master Alloys Because carbide burs hold their

Because carbide burs hold their edge far longer than standard burs

Apply a drop of testing acid across both marks and observe how each reacts

092) or AGILO SHARP-F Fine (110

561 – Round Finishing Bur

Durston 15242628US PrecisionFit Ring Sizing Set - Steel & Aluminum Ring Mandrels & 31 Ring Set 1-16 USA Master Alloys Because carbide burs hold theirThis complete ring sizing system pairs lightweight front of house mandrels with a heavier workshop mandrel and matching ring gauges, so every size from 116 reads the same at the counter and at the bench. The mandrels feel solid and precise in the hand, with crisp engraved markings that are easy to read under normal shop lighting. Features Integrated ring sizing system designed to keep showroom and workshop sizing perfectly aligned from size 1 through