DHP Mfg., Bindery Equipment & Supply was started in 1970 as a supplier to the paper drilling industry. Originally called Drill Head & Parts Engineering Company, DHP manufactured and sold parts for the Dexter-Lawson Model A, B and Classic paper drilling machines. Since then we have continued to grow our manufactured line to includes paper drill bits for every US and European machine, replacement parts also for cutter, folder, stitchers, etc. We are currently a national supplier for consumables and replacement parts currently used in a printer's bindery. phone 850-465-0263 or 888-795-0554 in the US