[ Steel Material]: Crafted from hardened and polished 45 steel, this dapping block resists deformation for long-lasting use in metal forming projects. [Precise Doming Tool]: Features highly polished depressions with accurate machining for creating dome shapes on metal with punches. [Versatile Anvil Hole Sizes]: Comes with multiple anvil hole diameters from 4mm to 20mm, supporting a wide range of dome sizes and jewelry designs. [Professional Craftsmanship]: Designed for jewelry makers, this doming die block delivers smooth, consistent results for reshaping and forming metal pieces. [User-Friendly Design]: The semi circular spheres of the block provide an ideal for efficient metal forming, simplifying dome creation for artisans and hobbyists. Item Type: Dapping Block Material: 45# Steel Anvilable Hole Diameter: . 4mm / 0.16in, . 5mm / 0.20in, . 6mm / 0.24in, . 7mm / 0.28in, . 8mm / 0.31in, . 9mm / 0.35in, . 10mm / 0.39in, . 11mm / 0.43in, . 12mm / 0.47in, . 13mm / 0.51in, . 14mm / 0.55in, . 15mm / 0.59in, . 16mm / 0.63in, . 18mm / 0.71in, . 19mm / 0.75in, . 20mm / 0.79in Package List: Color: As Shown Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.