- Premium Quality & Durable: The 1-1/8 Inch Diamond Hole-Saw Bits feature a diamond-tipped design capable of cutting smoothly through ceramic, porcelain tile, granite, stone, glass bottles, and more. With a pilot drill bit and diamond height of 3/8" and a total length of 2-1/2", these diamond hole saw bits are engineered for precision. Exceptional Cutting Depth & Dimensions: Each bit provides a cutting depth of 1-3/8", ideal for handling thicker materials. The size (28mm or 1-1/8") and the inclusion of a guiding pilot drill bit ensure accurate and swift drilling, saving both time and effort in various construction or home improvement projects. - Versatile Use: Perfect for creating holes in countertops for faucets, garbage disposal buttons, bathroom remodels, HVAC systems, and more. Whether you're installing pipes, lines, or needing precise cuts for pottery and planters, these tools handle it all. - Enhanced Cooling Feature: To boost performance and preserve the life of the bits, a water-cooling method is recommended. By lubricating with water during drilling, or dipping the bit in water intermittently, these tools ensure a smoother operation and cleaner results. - User-Tips: Start with the removable pilot drill bit installed for precise positioning at first, then use the hex wrench to remove the pilot bit and cut a precise hole with the diamond hole saw in wobbling motion, enhancing your DIY drilling experience with minimal effort and maximum accuracy.

Drill through tough materials with ease using our 1-1/8 Inch Diamond Hole-Saw Bits, designed meticulously for professional and home environments. These twin diamond-coated core drill bits assist you to achieve efficient and precise drilling with ease, suitable for a wide range of applications including construction and home renovation projects.

Each bit is crafted using high-quality materials with a diamond coating, ensuring each job is performed with precision and smoothness, leaving clean, perfect holes. The 1-1/8" diameter paired with a substantial 1-3/8" cutting depth allows for diverse applications, from pot crafting to intricate installations in granite countertops.

User Instructions:

Our bits come with an integrated guiding pilot drill bit at the center.

This unique design starts your drilling process easily, marking an accurate circle on a surface before enabling deeper cuts.

After initial a marking, please use the provided hex wrench to remove the pilot bit and continue for a seamless operation even in the hardest materials.

Designed for use under both wet and dry conditions, the effectiveness of these bits is enhanced by water cooling.

By either continuously lubricating with water while drilling or intermittently dipping the bit in water, the operational life of the bits is dramatically extended, and heat buildup is significantly reduced.

This set is perfect for homeowners and professionals alike, providing an essential component for kitchen and bathroom renovations, plumbing tasks, and even decorative home improvements.

Transform the way you work with our Diamond Hole-Saw Bits set, making drilling not just a necessity but a part of an enjoyable crafting experience.

Whether you're drilling for functional installations or creative home projects, our tools are engineered to perform flawlessly every time.