The rigid and robust construction of the knurling tool holders makes them ideal for countless knurling applications. These are available in 3 types: Knurling Tool Holders - 3 pairs, Knurling Tool holder - 1 pair, knurling tool holder - 1 knurl. The revolving head is fitted with standard left and right pattern knurls in fine, medium and coarse pitch. Any pair can be brought to bear on the work piece, thus 3 different knurling patterns are obtainable without changing the tool. A two knurl holder ideal for small knurling applications, it has a self adjusting pivot head which ensures that the knurl finds the centre line of the work exactly. It comes complete with one right and one left hand knurl. Single knurl holders, these are useful for light duty applications. They come complete with one straight knurl.