La présente norme fixe les dimensions des fraises 3 tailles, à queue cône Morse, dites fraises pour rainures à T, les dimensions de ces fraises ayant été déterminées en vue de l'exécution des rainures à T suivant la norme NF E 21 -301.Les fraises de la présente norme sont valables pour l'exécution des rainures à T de 10 à 54 mm inclus, la gamme des fraises à queue cylindrique suivant norme NF E 66-228 étant valable pour les rainures de 5 mm et au-delà.
This International Standard specifies the dimensions of T-slot cutters with plain or flatted cylindrical shanks, with threaded shanks and with Morse taper shanks having tapped hole. It applies to those tools which are intended for manufacturing T-slots for machine tools for equipment, in accordance with ISO 299. T-slot cutters with plain cylindrical shanks or flatted cylindrical shanks and with threaded shanks are suitable for the production of slots in accordance with ISO 299 from 5 mm to 36 mm inclusive; those with Morse taper shanks are suitable for the production of slots in accordance with ISO 299 from 10 mm to 54 mm inclusive.
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