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Individual
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Individual
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Priority to ES0040353UpriorityCriticalpatent/ES40353U/en
Publication of ES40353UpublicationCriticalpatent/ES40353U/en
A saw driller, which essentially consists of an axially drilled drum, adjustable to the stem of a normal cylindrical drill, with elements for its attachment thereto, and which has a series of concentric annular grooves or channels at its lower base. from which a ring of steel strip, with its lower edge provided with saw teeth, can be adjusted and fixed by a radial threaded pin. (Machine-translation by Google Translate, not legally binding)
ES0040353U1954-02-051954-02-05A saw driller (Machine-translation by Google Translate, not legally binding)
PendingES40353U
(en)
Conicity checking instrument particularly for cones of drill bits, bits and similar tools (Machine-translation by Google Translate, not legally binding)