Draper Diamond Core Bit

This 38 x 170mm diamond core bit provides an ideal diameter for 32mm waste pipes, medium electrical trunking and various building services installations. The 38mm size is particularly versatile in domestic and light commercial applications, offering sufficient clearance for common fittings whilst minimising the drilling effort required compared to larger diameter bits. Constructed with laser-welded diamond segments, this bit ensures reliable performance when dry cutting through brick and concrete blocks. The 1/2" BSP threaded arbor connection provides secure mounting on professional core drilling equipment, delivering the accuracy needed for quality installations. At 170mm length, this variant is well-proportioned for standard wall thicknesses, making it a practical choice for electricians, plumbers and general builders.