Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by IndividualfiledCriticalIndividual
Priority to ES1978239600UpriorityCriticalpatent/ES239600U/en
Publication of ES239600UpublicationCriticalpatent/ES239600U/en
Improved stop for drills characterized essentially because it is constituted by an arillo whose internal diameter is greater than the outside diameter to that of the drill bit, which having at least as many threaded radial holes as the drill's inputs and to the passage of said inputs, constitute accommodation for others so many fixing screws and positioning of the ring with respect to the bit, determining the maximum depth of the hole that drills. (Machine-translation by Google Translate, not legally binding)
ES1978239600U1978-11-211978-11-21Perfected stop for bits (Machine-translation by Google Translate, not legally binding)
PendingES239600U
(en)
PROCEDURE FOR CHANGING THE INVOLVED DISTANCE BETWEEN CONCENTRIC CIRCUITS OF CUTTING TRACKS CREATED BY A ROTARY BORING CROWN UNDER DRILLING, AND THE BORQUE FOR MAKING BORE HOLES WITH LARGE DIAMETERS