Draper Diamond Core Bit

This 107 x 170mm diamond core bit provides a large diameter solution for substantial building services installations, including major ventilation systems, large waste pipes and significant service penetrations. The 107mm size is particularly valuable in commercial building work, plant room installations and major renovation projects where larger diameter holes are essential. Constructed with laser-welded diamond segments, this bit ensures consistent cutting performance when working with brick and concrete blocks in dry cutting applications. The 1/2" BSP threaded arbor connection provides the secure mounting necessary for controlling larger diameter core bits safely and accurately. Whilst the 170mm length may require drilling from both sides for very thick walls, it offers excellent control and manageable weight for professional installation work.