EdgePoint 7 Piece Diamond Dry Core Drill Kit.

Edgepoint Diamond Dry Core Bits deliver a smooth drilling experience. They have 8mm diamond segments that feature a high concentration of premium-grade diamond in the bond, utilising leading edge diamond/metal bonding and metallurgy, for long-lasting core life. The 1/2in BSP thread is compatible with standard core drilling machines and accessories.

The kit contains: 

3 x Diamond Dry Core Drill Bits: 38, 52, 117mm
1 x A-taper Pilot Drill 10 x 200mm
1 x SDS-Plus Extension Adaptor 10 x 200mm
1 x Hex Extension Adaptor 12 x 200mm
1 x Extractor Drift Key