Diamond Extractor Remover Drilling Concrete Review

CHIP REMOVAL HOLE DESIGN: All specifications have special holes for chip removal, and all debris generated when you drill is very easy to discharge.Very suitable for making clean and accurate holes. DRY GRINDING IS STRICTLY PROHIBITED: During use, it is necessary to continuously add water to cool, and dry grinding is strictly prohibited. It can be positioned at an oblique angle of 45 degrees first, and then drilled vertically. Note that the speed should not be too fast, and the speed should be operated slowly at 800-1000 rpm. MEET YOUR DEMANDS: Great hole saw is suitable for drilling on tile,concrete, brick, glass, marble, ceramic and etc.The hole opener can be used on bench drills, hand drills and machine tools with drilling functions, but it cannot be used for impact drills. HIGH QUALITY MATERIAL: This hole saw is made of high quality material. It is not only very hard but also very wear resistant.General purpose triangle drill shank, effectively prevent slipping during drilling, and withstand greater torque. AFTER SALE: We hope you have a good shopping experience.Please feel free to contact us at first if there is any problem,and we are always here to support you.