28mm x 300mm 4* Diamond Core Drill (1/pack)

The P4-DC dry diamond cores are suitable for dry drilling building materials such as : standard house bricks - all popular concrete blocks - breeze blocks - hand made bricks - building blocks & York stone. For best results it is advisable to use a dedicated dry core drilling machine such as our DC120V machine. Back end fitting is 1/2"BSP female fitting. All diamond core drilling require a 12mm or 13mm pilot hole.