Faithfull Core Drills - Diamond Contract Range

Faithfull Contractor diamond dry cut core bit, cuts clean holes with no breakouts. Suitable for brick and concrete blocks etc. They are ideal for plumbing, electrical, engineering installation and general building tasks. All cores are 1/2 in. BSP threaded. HAMMER OR IMPACT DRILLING ACTION MUST NEVER BE USED WITH DIAMOND CORE BITS AS DAMAGE MAY RESULT TO THE CUTTING TEETH. Diamond cores must always be used with power drills rated at 850 to 1,000 watts that are equipped with a safety clutch and variable speed function. Speeds of between 440 and 2,500/min are required for the correct application of core drills. Size: 157 mm Diameter. Length: 150 mm. 1/2in BSP thread.