All steel drop forged solid construction for long life with knurled handles for extra grip. Designed to hold a range of different sizes of round split-adjustable dies. The three screw design easily locks die into position and maintains alignment for accurate threading resulting in clean, straight threads. Die Stock Set Contents: 1 - 13/16” x 150mm, 1 - 1” x 210mm, 1 - 15/16” x 280mm.