Made from low carbon steel and tapered 1/4 in/ft. Pins are mainly used for hole alignment in maintenance machinery. 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® 100-piece taper pin Assortment contains: (3) #0 x 3/4 in, (3) #0 x 1 in, (5) #0 x 1-1/4 in, (5) #0 x 1-1/2 in, (3) #0 x 1-3/4 in, (3) #1 x 3/4 in, (5) #1 x 1 in, (5) #1 x 1-1/4 in, (5) #1 x 1-1/2 in, (3) #1 x 1-3/4 in, (3) #1 x 2 in, (3) #2 x 3/4 in, (3) #2 x 1 in, (5) #2 x 1-1/4 in, (5) #2 x 1-1/2 in, (3) #2 x 1-3/4 in, (5) #2 x 2 in, (3) #2 x 2-1/4 in, (5) #3 x 1 in, (5) #3 x 1-1/4 in, (5) #3 x 1-1/2 in, (5) #3 x 1-3/4 in, (5) #3 x 2 in, (3) #3 x 2-1/4 in, (3) #3 x 2-1/2 in, (3) #3 x 2-3/4 in, (3) #3 x 3 in, (3) #4 x 1 in, (3) #4 x 1-1/4 in, (3) #4 x 1-1/2 in, (5) #4 x 1-3/4 in, (3) #4 x 2 in, (3) #4 x 2-1/4 in, (3) #4 x 2-3/4 in, (3) #4 x 3 in, (3) #5 x 1-1/2 in, (5) #5 x 1-3/4 in, (3) #5 x 2 in, (3) #5 x 2-1/4 in, (3) #5 x 2-1/2 in, (3) #5 x 2-3/4 in, (3) #5 x 3 in, (3) #6 x 1-1/2 in, (3) #6 x 1-3/4 in, (3) #6 x 2 in, (3) #6 x 2-1/4 in, (3) #6 x 2-3/4 in and (3) #6 x 3 in.