For over 50 year Form Roll Die Corporation has been providing the industry with the highest quality knurling tools and thread rolls. Form Roll Knurls and knurling tool holders are made to extremely high standards and from the finest material available. The care and precision used in their manufacture assures the user of a premium quality tool. The High Speed Steel Knurl, lapped or ground to a smooth hard finish, will give longer life and impart a smooth clean surface to the knurled part. Special knurls for a multitude of specialty applications made to your specifications and needs, including attachment head knurls.