Lockmasters, Inc.

Michael J Osborne

Ernest M Osborne

A drill rig for drilling access holes in drill resistant materials, such as those used to construct safes or other secure containers. The drill rig includes a drill bit holding and advancing mechanism having enclosed threaded members for allowing incremental, even pressure to be applied during a drilling operation while preventing burrs and chips from becoming lodged within the threads. A sliding connection is provided between stationary frame structure of the rig and the drill bit holding and advancing mechanism. The connection includes a spring loaded, quick-release mechanism for allowing quick detachment of the drill bit holding and advancing mechanism from the frame structure at the end of a drilling operation or as needed to replace the drill bit.

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Lancaster, KY, United States of America

Michael J Osborne