All Diamond Cutting Blades. Diamond Grinding Shoes & Blocks. All Grinding Shoes / Blocks. Hard Bond (Soft Concrete). Medium Bond (Medium Hardness). Soft Bond (Hard Concrete). All Dry Core Drills. Dry Core Drill Bits. Dry Core Drill Sets. Cutters, Shafts & Brushes. All Cutters, Shafts & Brushes. Grinding / Polishing Discs & Pads. All Grinding / Polishing Discs & Pads. 4 Diamond Cup Discs. Electric Motors / Engines. Bartell Global E79CBD43 Dry Core Drill Bit 200mm Dia. The Bartell E79CBD43 is a professional quality 200mm diameter dry core drill bit. It is designed with along lasting 10mm diamond segments that incorporate V shaped notches to aid the start of the cutting process. Carefully designed air holes reduce the build up of heat in the core and help move the core bit through the cut. 10mm 1/2 BSP Fitting. 60mm long core body for deep cuts. Tough, durable high quality steel core. Carefully designed air holes to minimise heat. Long lasting 10mm Diamond segments. V-segments to help start your cut quicker. Designed for precise cutting. For cutting soft – medium hardness concrete. Cuts brick, breeze-block and similar materials. For Dry cutting only. All of the products in the Bartell line of Core Bits are designed to cut quick and precise holes whilst maintaining an excellent tool life. We sell Dry Core Drill Bits with the following diameters: 22mm, 28mm, 32mm, 38mm, 52mm, 65mm, 68mm, 102mm, 107mm, 127mm, 162mm, 182mm, and 200mm. We also provide 3 and 5 piece kits containing some of the more commonly used sizes and adapters. To see what we have available – view our complete Dry Core Bit range. We will endevour to try and dispatch all orders received before 2pm the same day. Please note courier service prices are for mainland UK areas only. Faulty / defective items should be reported to us within 7 days of their receipt. Is one of the worlds leading companies that designs and manufactures surface grinders floor saws for flooring contractors and specialists. We are part of the Bartell Global family of companies that also includes more product brands that produce world class cutting, grinding and polishing machines. As leading developers of floor preparation machinery, you can rest assured that all of our diamond tooling is of the highest quality and optimised to perform the task for which it is designed. All Grinding / Polishing Discs & Pad.