Industrial Grade Center Cut Cutter, 18 in OAL, 1 4 in Cutting Cap no checkout Tough brass hinge pin is Tough brass hinge pin is durable and allows both jaws to carry current Enclosed heavy duty spring assures a powerful bite on the work Insulation on top and bottom jaws provides extended spring life Delivers 1000 or more cuts with no need for wheel change Advanced diamond technology provides extreme durability in metal cutting applications Made with diamonds so that the cutting depth remains the same throughout its life for control alloy tool steel jaws with center cut blades Cut materials up to Brinell 455 or Rockwell C48 hardness Toggle joints turn 50 pounds of hand pressure into 4 000 pounds of cutting pressure Screw type adjustment realigns edges Lockplate keeps jaws from loosening