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Priority to ES1978239600UpriorityCriticalpatent/ES239600U/es
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Tope perfeccionado para brocas caracterizado esencialmente porque está constituido por un arillo cuyo diámetro interior es mayor que el diámetro exterior al de la broca, que presentando como mínimo tantos orificios radiales roscados como entradas tenga la broca y al paso de dichas entradas, constituyen alojamiento para otros tantos tornillos de fijación y posicionamiento del anillo respecto a la broca, determinando la profundidad máxima del orificio que taladra.
ES1978239600U1978-11-211978-11-21Tope perfeccionado para brocas
PendingES239600U
(es)
Fremgangsmaate for endring av den innbyrdes avstand mellom konsentriske sirkler av skjaerspor som dannes av en rotasjons-borkrone under boring i grunnen, samt borkrone for fremstilling av borehull med stor diameter