[Size Range]: The size range of this steel parallel set is 1/2"-1-11/16" by 1/16" intervals, making it versatile and suitable for various applications. [Parallelism]: Provides a parallelism of +/- .0001", ensuring precision and accuracy in your work. [Matched Pair Height]: The matched pair height is +/- .0001", which guarantees consistency in your work. [Material]: Made from high-quality tool steel, this parallel set is durable, long-lasting, and resistant to distortion. [Product Features]: This exclusive 20 pair ultra-thin parallel set includes each parallel at 1/32" thick x 6" long without any holes on the body. The set comes complete with a durable plastic case for easy storage and transport. The HFS 20 Pairs (40pcs) 1/32" x 6" Steel Parallel Set is a high-quality set of precision machinist tools designed to provide precision and accuracy in your work. With a size range of 1/2"-1-11/16" by 1/16" intervals, this set is versatile and suitable for various applications. It provides a parallelism of +/- .0001" and a matched pair height of +/- .0001", ensuring consistency in your work. Made from high-quality tool steel, this parallel set is durable, long-lasting, and resistant to distortion. The exclusive 20 pair ultra-thin parallel set includes each parallel at 1/32" thick x 6" long without any holes on the body. The set comes complete with a durable plastic case for easy storage and transport.