... .Solid carbide 3.Very sharp 4.long life SILCA DUPLICATOR CUTTERS1.materil: solid carbide2.Diamater :80mm,inner diameter is 22mm, ... weight is 0.11kg per pcs.3. For SILCA KEY DUPLICATOR, replace SG3W.4. To work on iron ,brass, steel, stainless ... milling cutter,be used in key cutting machine6. we can supply many key cutters for SILCA,WENXING,JMA,ILCO ORION.keyline ...