【Firm & Sharp & Long Service Life】The surface adopts high anti-corrosion electroplating process, and thickened diamond coating on the top provides excellent cutting strength for high-precision, smooth cuts.

【Strong Suction & Accurate Positioning】Upgrade double suction cup design, provide more powerful suction than the single suction cup. The adjustable size is 4mm-83mm.

【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.

【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. Please refer to the attached instructions for details.

【Package Content】15 pcs professional integrated steel diamond hole saw: 6mm / 0.24 ", 8mm / 0.31", 10mm / 0.39 ", 12mm / 0.47", 14mm / 0.55 ", 16mm / 0.63", 18mm / 0.71 ", 20mm / 0.79", 22mm / 0.87 ", 25mm / 0.98", 26mm / 1.02 ", 28mm / 1.1", 30mm / 1.18 ", 40mm / 1.57", 50mm / 1.97 ". 1 pc double suction cups ceramic tile holes locator, 1pc screwdriver used to clean up the debris left in the hole saw after drilling, 1 pc product manual.