This 2 Piece Kit Includes 14k & 18K Bent Metal Jewelry Marking Punch Stamps New 14K Bent Stamp This is a new 14K bent stamp It is made of 1/4" (6 mm) round heat treated tool steel The shank measures approximately 1/4" (6 mm) The numbers and letters are 1/32" (1 mm) tall New 18K Stamp This is a new 18K bent jewelry stamp Made of hand cut steel to stamp impressions on metal surfaces It has a 5/16" (8 mm) shank The numbers and letters are 1/32" (1 mm) tall To reduce rust in storage, metal tools received may come in packing grease or oil. To remove packing grease we recommend using degreaser and a rag.