Hegebeck Paper Punch DrillDescription: When drilling,the drilled holes must not be repeated again;Otherwise,the drilled holes cannot be rounded and the inside of the drilled holes will be blocked by paper scraps;Hollow punch is easy to use by placing gasket hole punch over area that needs a hole and hit back end with a hammer or mallet,creating unique effects on leather with different patterns punchers;Punched papers cannot be punched repeatedly;If the drilling size is small,the pressing rod speed should be slower,the drilling time is too long,the thickness of the drilling paper is too thick;Use your electric drill or drill press and this hollow punch set to make smooth and consistent holes in leather or heavy fabric; the hollow punch set can be safely and non-sliply installed in any chuck;Specifications:Product Name:Paper Punch DrillMain Material:High Carbon SteelHardness(HRC):52-55Main Color:Silver,BlackPackage Content:1PCS x Paper Punch DrillNote:The dimensions are measured manually,so the deviations may exists,hope you can understand us and thank you very much;Because of the punching tool of the sharp pointed gasket cutting machine, please keep it out of the reach of children;The surface should be coated with anti-rust oil to prevent rust,pay attention to safety before use;