BS ISO 3292:2016 pdf free.Extra-long parallel shank twist drills. This International Standard specifies the dimensions of extra-long parallel shank twist drills in the range of 2 mm to 14 mm diameter with an overall length range of 125 mm to 400 mm. 2 Normative references The following documents, in whole or in part, are normatively referenced in this document and are indispensable for its application. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. ISO 10899, High-speed steel two-flute twist drills — Technical specifications 3 Dimensions See Figure 1 and Table 1. 4 Technical specifications Unless otherwise specified, technical requirements shall comply with ISO 10899. 5 Designation Extra-long parallel shank twist drills in accordance with this International Standard shall be designated by the following: a) twist drill”; b) a reference to this International Standard, i.e. ISO 3292; c) drill diameter, 4, in millimetres; d) overall length, I, in millimetres.BS ISO 3292 pdf download.