stitch drilling rock

Long, thin drill bits can be used to methodically punch tiny, precise holes in rocks for a variety of uses. Stitch drilling is the name of this process and it is utilized by mining and quarrying companies to form blast holes and by construction teams to make deep pockets for anchor bolts and fixtures.

A drill bit is securely affixed to a unique chuck that allows for the bit to spin and penetrate the stone with precision. In order to alleviate heat, a stream of water is directed towards the bit to lubricate it and wash away debris.

The process of stitch drilling may be tedious, however its results are really worth the effort: the outcome is holes that are straight and neat. This method is mainly used for creating horizontal or near-horizontal openings, since prolonged and lean drilling bits tend to keep in a steady direction, rather than fall off track like shorter and more substantial bits.

Despite its accuracy, stitch drilling can be a time-consuming task when there are numerous holes to complete. It takes a number of minutes to finish one opening, making the process rather tedious if a project entails thousands of boreholes. Consequently, stitch drilling may not be feasible or cost-effective for certain applications.

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