Drill through reinforced concrete and dense natural stone with control and precision using the Carat Brilliant eb diamond core bit. Its robust laser-welded segments deliver a smooth startup and dependable performance during heavy-duty drilling without damaging the surrounding material. The 1/2"G connection provides continuous water cooling, keeping temperatures low, suppressing airborne dust, and extending tool life. With a 51 mm diameter and a 420 mm working length, you can easily create clean, deep penetrations through thick walls and concrete slabs for plumbing, electrical, or hvac installations.