Diamond core drill bit set, specifically designed for cutting precise circular holes in hard materials like brickwork, blockwork, masonry and concrete. Purpose: These bits are ideal for plumbers, electricians, and other installation engineers for tasks such as creating openings for flues, air vents, plumbing, or electrical channels. Construction: Made from steel and feature industrial-grade diamonds embedded on the cutting edge for enhanced cutting power and durability. Usage: Diamond core drill bits are designed for use with rotary power drills and should not be used with hammer action, as this can damage the cutting teeth. Benefits: They offer a faster cutting rate compared to TCT (Tungsten Carbide Tipped) alternatives and require less pressure during operation.