<ul><li>Features: Suitable for stone, tiles, ceramics, glass, etc. Center positioning drill bit helps to cut precise holes.</li><li>Long Life: Reduced drilling speed, low drilling pressure, and increased use of water lubrication will extend the life of the drill bit.</li><li>Clear Hole: Diamond drill bits with a through hole that makes it easy for cooling water to enter and chips to exit. Makes the drilling process easier.</li><li>Clean and Smooth Cutting: The diamond hole saw creates high-precision, smooth cuts without broken edges. The white zinc coating on the drill bits maximizes tool life with excellent corrosion resistance.</li><li>Tips: Please use at low drilling speed and pressure. Always work with coolant (water) when drilling. Not suitable for drilling tempered glass, plastic, and wood. </li></ul> <p> </p><p> </p> <p>Product Description</p> <p>Description:</p> <p>1. Smooth and precise finish to reduce incision resistance and drilling pressure, increasing sharpness and water lubrication efficiency.</p> <p>2. Produces clean, accurate holes in minutes with little or no chipping. Center positioning drill bit helps to cut accurate holes.</p> <p>3. White zinc coating on the tips maximizes tool life with high corrosion resistance. Excellent for making holes in glass or ceramics and greatly extending the life of the drill bit.</p> <p>4. Diamond drill bits with through hole make it easy for cooling water to enter and chips and other drilling particles to escape. Makes the drilling process easier.</p> <p>5. Suitable for stone, tiles, ceramics, glass, etc. Works best with an electric drill (except the item).</p> <p></p> <p></p> <p>Note:</p> <p>1. Always use lubrication (water) when the drill bits are in operation.</p> <p>2. Low drilling pressure and increased use of water lubrication will prolong the life of the drill bit.</p> <p>3. Not suitable for use in concrete or for depths greater than approximately 1/2 inch.</p> <p> </p>