Heavy-Duty Synchronized Rolling Heads Tool# 225G-20 : Knurls|Knurl|Knurling Tools|Knurling Tool Holders|Knurling Pins|Knurling Info|Special Knurls|Conical Knurls|Diametral Knurls|Circular Knurls|Knurl Holder|Bump Type Holder|Compact Straddle Holder|Heavy Duty Straddle Holder|Self Centering Holder|End Feeding Holder|INTERNAL KNURLING HOLDER|FACE KNURLING HOLDER|CONICAL KNURL HOLDER|SHANK CONICAL KNURL HOLDER|Stafford Special Tools|SST|, Special Knurling Tools|Knurls-SST.com|SST online store