Castle & Pryor Ltd

Castle & Pryor are a specialist diamond drilling and cutting company working within the construction and civil engineering industries and aiding the controlled demolition industry with our controlled robotic demolition equipment and expertise.

Percussion and rock drilling use rotary percussion or compressed air drills for forming holes. This equipment can be hand held or a frame-mounted machine is commonly used when drilling non-reinforced concrete or brickwork.

Percussion and rock drilling use a hammer action technique which vibrates the material loose with its tungsten carbide tips, clearing the hole as it proceeds. It is commonly used for dowel bar insertion and resin anchors due to the rough sidewalls that are left once drilled.

Structural engineers prefer this method of drilling as epoxy resins adhere / grip more thoroughly to textured / roughened surfaces.