Made of flexible spring steel, cold rolled, hardened and tempered. Chamfered ends simplify insertion. Handy kit for shop toolroom or toolbox. On hand when needed saves time and money. Plastic compartment box is easy to store. The Precision Brand® 300-piece roll pin Assortment contains: 10 each of 1/16 in and 5/64 in Dia by 1/4 in, 3/8 in, 1/2 in and 3/4 in, 10 each of 3/32 in Dia by 5/8 in, 1 in, 1-1/4 in and 1-1/2 in, 8 each of 1/8 in Dia by 5/8 in, 1 in, 1-1/4 in and 1-1/2 in, 7 each of 5/32 in and 3/16 in Dia by 1 in, 1-1/4 in, 1-1/2 in and 1-3/4 in, 8 each of 7/32 in Dia by 1-1/4 in, 1-1/2 in, 1-3/4 in and 2 in, 7 each of 1/4 in Dia by 1-1/4 in, 1-1/2 in, 1-3/4 in and 2 in, 5 each of 5/16 in Dia by 1-1/4 in, 1-3/4 in, 2 in and 2-1/2 in, 3 each of 3/8 in Dia by 1-1/2 in, 1-3/4 in, 2 in and 2-1/2 in.