Drilling

Core Drilling

Diamond drilling rigs can vary in design but the basic principal is the same. The base plate of the drill stand is secured to the concrete/brick to be drilled either by rawlbolt, acrow prop, vacuum pad or weights.

This technique is used when precise circular cuts are needed, to create openings for example, for plumbing, electrical and heating/ventilation installations. Core drilling is commonly used to create the holes for routing cables or for placing anchor bolts, for installing load carrying devices or for concrete sample analysis.

A core drill bit consists of a steel tube with diamond segments brazed or welded on the drilling end, and mounted on a rotating shaft. When in use the core bit is kept cool using water which also totally eliminates dust. Core drill machines can be operated in either vertical or horizontal direction.

Stitch Drilling

This method of drilling is used when the size or shape of the hole is abnormal. It is achieved by drilling a series of holes to create the required opening.

Prop Drilling

This method of drilling is used where the fixing of the rig to the substrate is not possible. This is achieved by propping the rig between the floor and the ceiling.