Solid Punches (Mayhew) For loosening frozen or tight pins and keys or knocking out rivets. Punches made of high grade tool steel for superior tensile strength, toughness and long life. Shanks are fully heat treated, a two-step process in which the entire length of the tool is hardened and tempered; then the struck end is drawn back. This assures the struck end will be less susceptible to mushrooming. Made in USA.
