Drilling of Test Cores – Marble Arch Post published:September 30, 2024 Two areas of cracking in a marble wall required investigation as to the make up of the wall. Using a Hilti suction rig, to prevent bolting onto the marble surface, two 78mm no. holes were drilled to a depth of 680mm. The walls were solid marble. You Might Also Like Controlled Demolition to Enlarge Tipping Hall Bay Chute Walls – Kemsley, Kent May 4, 2023 Concrete Repair – St Albans February 3, 2020 Diamond Stitch Drilling Openings – High Street, Battle March 16, 2023