Guide Pins 1,consistent quality control 2,made-to-order service available 3,Material:HSS M-2,SKH-9, SKD11, ITEM Guide Pins Specifications ... C. Custom sizes can be made to order up to 1" diameter. Custom hardness RC 64-65 and triple drawn available ... Pins, Metric Core Pins, Punch, Punch Pins, Guide Pins, Dowel Pins, Parallel Pins, Guide Pillar, Guide Bush sets of stairs Lead Guides and Step ...