New 6 Wheel multi Head lathe Knurling Tool * Disk can be rotated and locked through side bolt to give different patterns of Coarse , Medium and Fine Knurling Textures * This knurling tool has 3 set of knurl pair of different pitches which gives different pattern as required * Holder Size : 3/8 x 7/8 x 5-1/2" Inches ( 9.5 x 22 x 140 mm )