Durston PrecisionFit Steel Ring Mandrel Graduated in USA sizes 1 To 16 by 1/4 Size-No Groove Prop 65 - Cobalt Profile 8-Point Star Size Range

Profile 8-Point Star Size Range 9mm – 6mm Number of Holes 31 Variant Count 1

Warding profile: parallel in thickness

the Grobet Procraft

Cut 4 Fine

20 Jaw Width 20mm Top Style Straight Compatible System GRS Microblock with JURA attachment set Notes

Durston PrecisionFit Steel Ring Mandrel Graduated in USA sizes 1 To 16 by 1/4 Size-No Groove Prop 65 - Cobalt Profile 8-Point Star Size RangeThe 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