Alcance
                            This document specifies the dimensions of machine bridge reamers. It gives, for a series of diameter ranges, d1, from 6 mm to 50,8 mm, the values, in millimetres, for the following dimensions of these tools:—          overall length, l3;—          total cutting edge length, l2;—          tapered cutting edge length, l1.Unless otherwise stated, these reamers are right-hand cutting.