For gunsmiths or firearm owners working on their firearms, the Otis Soft Jaws for General Use are an essential item to protect your firearm while keeping it secure in a vise. Works with light duty vises up to large, heavy duty vises (minimum vise jaw measurement is 4”L x 0.5”H). Composed of a non-slip rubber material, these soft jaws have the perfect balance of hardness to keep even the smallest parts clamped and flexibility to mold to the various shapes of a firearm. Softer than gun parts, these soft jaws will not mar or scratch gun metals. The rubber is oil, solvent and alcohol resistant and easily wipes clean. They also feature a top lip which not only help protect the firearm but in conjunction with embedded magnets, also hold the Soft Jaws to the jaws of the vise. Designed by a group of professional gunsmiths, the general use soft jaws feature a flat surface perfect for firearm receivers and slides to be clamped with even pressure. It also features barrel channels sized .625” and .750” for secure clamping of round objects such as bolts and barrels.