Irwin Lockhead. Quick size adjustment. Drop-forged in 1-piece from special analysis steel; heat-treated full length. Medium slow screw pitch. Wedge-type blade lock is positive in action. Highly polished finish. In white plastic pouch with clear front. Hang-up hole. Instructions printed on back of pouch. Large size, with 2 cutters, 1 cutting 7/8" to 1-3/4", the other cutting 1-3/4" to 3", weight each: 9/16 lb., 6 in a box.