Meticulously crafted tool steel and then heat-treated in a kiln for hardened steel. Each repoussé and chasing tool is 4" long to provide maximum control. Multi profiles are included. You will be impressed with the exceptional workmanship applied to the creation of these outstanding tools. Suitable for stamping on Aluminum, Pewter, Alkeme, Copper, Brass, Nickel, Silver. Tips measure : 5.9mm 5mm 3.2mm 5.9mm 4.9mm 5.9 x 3.2mm 5.9 x 2mm 5.9 x .9 mm 3.5 x 1 mm 3.6 x 7.5mm 5.5 x 2.04 mm 4.3 x 2mm