Set Comprises: 42, 52, 65, 117 & 127mm Cores.

Cores have Diamond Segmented Bond, developed exclusively for UK building materials.

Cores have 1/2" BSP Female thread, compatable with all makes of dry core accessories.

High quality diamond tips ensure fast drilling and long life.

slotted and spiralled barrel design enhances dust removal and helps prevent snagging.

Supplied in smart counter display/shipping box.