McHugh Milieux is now manufacturing the model M120 Wire Knife Carrier, M121 and M122 retractable wire knives. These knives are functionally identical to those previously manufactured by David Kopf Instruments™. Pictured here from left to right is the Model M120 carrier, the M121 Rectractable Wire Knife, and the M122 Reinforced Wire Knife.m120andwireknives