Check the listing for details. Set Of Two Knurling Tool Holder Two Knurls Single Knurl Bluefox. Condition: New. Listed at 29.03 USD. Set Of Three Knurling Tool Holder Six Knurls Two Knurls Single Knurl Knurling Tool Holder - 1 Knurl/Wheel Single knurl holders, these are useful for light duty applications. They come complete with one straight knurlMade of Tool Steel Holder Size : 3/4" x 3/4" x 5"( 19 MM x 19 MM x 125 MM)Knurl Dimension: 3/4" x 3/8" x 1/4" (19 mm x 9.52 mm x 6.35 mm)Linear Pattern Single Knurl Tool EN 31 Alloy Steel Knurl Quality Double end straight Linear Knurling Tool Holder Size 1/2" x1/2" x 5" Ideal knurling tool for a small to medium sized lathes.Features medium Straight pattern knurls.Holder Size (In Inches): 1/2 x1/2 x 5" Holder Size (In mm): 12.7 x 12.7 x 125 mmKnurl Dim. (In Inches) : 3/4 x 1/4 x 1/4 " Knurl Dim. (In mm) : 19 x 6.35 x 6.35 mm