Diamond cores offer excellent speed and performance when it comes to cutting holes in brickwork and concrete block. They are ideal for plumbing, electrical, engineering installation and general building work. At Toolden we also stock a range of diamond core drills to get the job done. Our range of diamond core drill bits includes a range of sizes to suit your project along with additional extensions and diamond core drill bit kits. For great quality diamond core drill bits at low online prices, choose Toolden today.