【Firm & Sharp & Long Service Life】 Hole saws are made of diamond integrated steel, which are strong and sturdy. The surface adopts high anti-corrosion electroplating process, and thickened diamond coating on the top provides excellent cutting strength for high-precision, smooth cuts. Reducing drilling speed and pressure, increasing the use of water lubrication will greatly extend the service life.

【Easy To Use & Only 4 Steps Required! 】 Step 1: Clean the surface and mark the drilling position. Step 2: Place the hole saw into the positioner and adjust the location of the hole. Step 3: Press the double suction cups positioning system of the positioner and fix the hole saw by adjusting the positioning shaft wheel. Step 4: Complete the drilling work under the lubrication of water.

【One Set Is Enough】This diamond hole saw kit with drill guide is suitable for smooth surfaces such as ceramic tiles, ceramics, glass（Except tempered glass）, marble, granite and terrazzo. Our upgrade tile hole saw set can greatly improve work efficiency , save you time and energy. If you have any questions or dissatisfaction, please contact us first, we will provide you with satisfactory after-sales service!