Get Precise Concrete Drilling With TechDiamondTools 2-1/4" Diamond Core Bit - 11" Long Review

Diamond Drill Bit Core Boring CONCRETE DRILL 11" long for stone marble granite rocks. Premium quality diamond turbo core drill bits for concrete drilling designed for high performance and long life. Optimized for a wide range of construction materials including concrete, masonry, pavers, bricks and blocks. Designed for delivering the highest performance and long life at an affordable price. Wide application for drilling a wide range of construction materials. Mainly used for drilling stone, marble, granite, rebar concrete and other hard material like porcelain, tile, granite, marble, concrete, glass, fish tanks, bottles, tile bottles, blocks jars, fiberglass porcelain, ceramic. Ideal for drilling the faucet mounting holes in stone countertops, plumbing lines in showers, and vanities, can also be adapted for use in construction trades wherever holes are needed for water, gas and electrical piping, especially when natural stone, concrete or ceramic tile is already installed. Made of high quality diamond with precision drilling speed and long life use. Premium grade of diamond segment has high efficiency, it will be more aggressive and durable. High diamond concentration and quality guarantee longer coring life. Designed for wet drilling applications. To prolong the using life, use with water for cooling and lubrication. Add lubricants frequently to avoid sparks while using this product, you can also enhance the working life by doing this. Use with standard electric or battery drillers. Ideal for both professional contractors and DIY