Drill Bits

Drill Bits-Silver Brazed & Diamond Core.  
for wood, metal,  marble, glass,  ceramic, tile, stone, brick and other hard materials. 
Diamond drill bits operate by making smooth contact with the surface which is softer than diamonds. The cutting action is a scratching action not a gouging action.  

McGills Core Bits at low, discount prices are Diamond segmented which cut anything from the hardest to the softest materials. McGills Bits are far superior to more expensive carbide tipped tools. These tools are technologically advanced in processing and more universally used to produce better results. The advanced design allows optimum power transmission from thousands of diamonds to rapidly cut through the toughest materials.