Durston PrecisionFit Steel Ring Mandrel Graduated in USA sizes 1 To 16 by 1/4 Size-No Groove Bails incremental size reductions that minimize

incremental size reductions that minimize stress on the metal and reduce the need for excessive annealing between passes

Factory part number 006-4201

stable viewing without the need to reposition the stone

Recommended for cutting gold

Durston PrecisionFit Steel Ring Mandrel Graduated in USA sizes 1 To 16 by 1/4 Size-No Groove Bails incremental size reductions that minimizeThe Durston PrecisionFit Steel Ring Mandrel is a super premium, properly hardened and expertly machined steel mandrel matched to the Durston Ring Size System and the Durston Ring Finger Gauge. Designed to work in concert with the full Durston sizing system, this mandrel helps jewelers minimize customer ring size issues at the benchwhether you are using a Durston finger gauge or another brand. With over 20,000 units in use at some of the largest