Features ad Benefits: Economy finish. Made of S2 stainless steel . Includes 6 pilot punches. All packaged in a storage case. Made in the USAThis 6 piece pilot punch set is designed to apply equal pressure to the end of a pin driving it straight through the hole. The ball on the center of the point end assures proper contact with the pin eliminating damage to the pin or hole wall. The following pilot punch widths: 1/8", 5/32", 3/16", 7/32", 1/4", and 5/16".