30 40 65 80 100mm Hole Saw Set for Concrete Hole Saw Kit with Triple-edged Cutting Hole Saws and 135° Tip Drill Bits

Premium Materials: The premium carbon steel, YG10 alloy, 40Cr, exquisite sandblasting process, and heat treatment process give the product high hardness, long service life, and excellent resistance to corrosion, wear, and rust, thus ensuring good performance for concrete hole-opening work. Wide Compatability: The 5 sizes of hole saws (1.18in, 1.57in, 2.56in, 3.15in, 3.94in) are able to help you open different sizes of holes. In addition, two different types of 11.81-inch shafts can be matched with different types of hammer drills, which gives this set of accessories a wider range of applications. High Working Efficiency: The triple-edged cutting hole saws and 135° tip drill bits boast more cutting power, which can easily cut into the wall and make hole-opening more efficient. In addition, each hole saw is equipped with two chip discharge holes to remove debris generated during the drilling process, ensuring smooth drilling. Easy to Carry and Store: The package includes a toolbox that provides specific places for storing the hole saws, shafts, and drill bits, allowing you to store them and carry them to your workplace easily. The simple structure, detachable design, and smooth surface allow you to easily wipe the dust off and keep these products clean with a soft cloth.