Description: Combo Set, 10 Matched Pairs Made from high quality tool steel- stress relieved against distortion Each parallel is 1/8 Inch thick x 6 Inch long with 2 holes Includes 10 pairs of the following heights: 1/2inch, 5/8inch, 3/4inch, 7/8inch, 1inch, 1-1/8inch, 1-1/4inch, 1-3/8inch, 1-1/2inch & 1-5/8inch Suitable for any machining, especially smaller workpieces; Use on a jig or drill press for milling work and other projects Specification: Product Material: Iron Package Includes: 10 Pairs Matched Parallels (20pcs)