1.Core: Natural diamond 2.Case: Stainless steel 3.Implemented as ... and other nonferrous metal wire material.SpecificationHole size: 0.03mm—1.00mm Case size: 25x12mm,28x11mm,30x15mm,25x10mm,24x10mm,etc. Tolerance ... :0/-0.001mm----0/-0.1mmWeight (fen)4681012141618202530ΦXh(mm)1.5X0.82X12.9X0.22.5X1.52.7X1.53X1.53.5X1 ...