FIND YOUR CORE BIT
The thread is the whole game here: nearly every rig we sell is 1-1/4 inch UNC, and a bit on the wrong thread is a bit you cannot use. Start with what you are drilling with and the 60 bits, adapters and extensions narrow to the ones that will actually go on.
Browse all 60 core bits
Diamond core drill bits 0 products
Diamond core drill bits for reinforced concrete, granite and ceramic. Brands include ADTnS, Distar, Baumesser and Bycon, in sizes from 6 mm up to 500 mm. Wet bits suit reinforced concrete, and dry bits and SDS-plus socket bits are available too, along with ceramic and granite bits for tile and stone. Check the thread on your drill before you order: many bits use 1 1/4 inch UNC, and others are M16 or M14. Adapters to change thread, and extensions, are in Core Drilling Accessories. Need a hand choosing a bit for the material? Ring the counter on 01 889 9000.
The bit has to suit the motor as well as the material. For the motor, stand and wet or dry choice, read our guide to choosing a core drill.
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