Overview

This standard DIN 212-3 applies for NC-reamers with stepped parallel shank with a shank tolerance h6, made of high speed steel for conventional chucks and for use as NC-reamers in expansion clamping chucks according to DIN 69882-7 and shrink chucks according to DIN 69882-8. The specification of Types A, B and C are analogous to DIN 212-1 and DIN 212-2 and other reamer standards, for example, DIN 208, DIN 219. This standard has been prepared by the Tools and Clamping Devices Standards Committee (FWS), Working Committee NA 121-01-03 AA "Senker, Aufbohrer und Reibahlen aus Schnellarbeitsstahl und Schneiden aus Hartmetall" ("Counterbores, core drills and reamers made of high speed steel and hardmetal cutting edges").

Document: references other documents

Document: referenced in other documents

Responsible national committee

NA 121-01-03 AA - Countersinks, core drills and reamers of high-speed steel and hard metal tips