This is hicoo tungsten carbide products coltd Our company can offer Punching and Impacting Dies. And there are varieties in every kind. For example: Punching Die blanks for making standard boltsHCM/ Die Blanks with sink/ Punching Die Blanks For Batteries142/ Combination die Blanks for making hexagonal nuts365/ Blanks for cut die25/ Blanks for ring dies/ Die Blanks for reducing diameter of nuts Whats more, Special products can be custom-made upon request. For additional products information, please check