Description: versatile core drill bits from core international they can fit both CNC 1/2″BSP fitting machines and a M14 wet polisher. Continuous rim are much more reliable, stronger and perform better to drill all core holes they can be used on a wide range of materials such as  granite,  quartz , sand stone, bricks, concrete. Designed with safety in mind each core drill is made on a CNC machine and the professional quality diamond segments are made to EN13236 standards. Use the core drill bits both wet or dry. Simply screw the drill securly on to a slow variable speed grinder of polisher. Remember to wear your safety equipment goggles, gloves, safety boots ect. 

• Premium Quality Diamond content.
• Use wet or dry.
• Best on Hard dense material like granite marble.
• M14 female thread & 1/2″ BSP Male CNC’s
• Spanner off section  
• 10mm Height sintered diamond drilling segment.
• Depth of Drilling 65mm.
• Best used with water 

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