Major Diamond Supplies Ltd

Tel: 01604767600          Fax: 01604767658          Mobile: 07831567765

Email:  Web:



For all your diamond drilling, sawing, cutting, grinding, crunching, bursting & breaking requirements and hydraulic power packs

and tools.

Tel: 01604767600     Mobile: 07831567765
Fax: 01604767658

Copyright© Major Diamond Supplies 2013

Diamond Core Bits

Diamond Core Bits
Diamond Core Bits

Whilst we can make almost any size, please click here for common sizes

Core Bits Ready to Post

A variety of core bit sizes available for use with drills (also available to hire/purchase)

Core bits can be dispatched on a next day delivery service

Core Barrels Ready to Retip
Core Barrel - segments brazed on

Right: Core Barrel with segments brazed on

Our Diamond Core Bits are made to order, with standard core barrels kept in stock.

We can create a variety of lengths and sizes for you, standard sizes 107mm (100mm core size), 158mm (150mm core size) standard length is 450 long, other sizes and lengths available on request.


Diamond segments used include Red 3, Red3DG, Blue 5 and Black 9.

Red - Heavy Concrete

Blue - General Concrete- granite etc

Black - Asphalt and abrasive materials

Tools & Accessories

Core Barrel  - cut, ready to re-tip