12 piece core drills set - kit bits 6mm to 35mm

• 9x drills 
• 1x Hex adaptor (3 jaw chuck)
• 1x 75mm extention bar
• 1x 150mm extention bar

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 is 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, limeatone. ceramics.
• M14 female thread & 1/2" BSP Male CNC's
• Spanner off section  
• 10mm height sintered diamond drilling segment.
• Depth of Drilling 55-65mm.
• Best used with water