Reamer NRNb 42 DIN 219-A HSS

The 42 NRNb, 42 mm diameter, socketed reamer meets DIN 219A standard. It is a type of finishing reamer, made of modern HSS high-speed steel. This tool is used for fine finishing of a hole, which was previously made with a drill or ripper, without the need for additional guidance of the tool. - working diameter - 42 mm - total length - 56 mm - length of the working part -40 mm - diameter of the fixing hole- 19 mm - number of teeth - 10