http://aprictc.com/services - APRICTC approach to large diameter drilling projects would be to evaluate customer requirements along with the local sales engineers and provide cost effective solutions. Traditionally, most companies supply either down-the-hole hammers, casing advancement systems or bunch hammers, not providing the complete solution to the client. These solutions comprise of the most current drilling accessories and equipment for large hole software such as foundation piles for harbours, shaft sinking and centre pipes.