Concrete Hole Saw, 11 PCS Masonry Hole Saw Kit (30 mm 40 mm 65 mm 80 mm 100 mm) with Max Shank & SDS Plus, Brick Hole Saw Drill Bit Set for Concrete Brick Cement Stone Wall Drilling

Alloy Technology：The surface of the hole saw adopts high anti-corrosion technology, and the sharp tungsten steel blade at the top provides excellent cutting strength for high-precision and smooth cutting, ensuring stable and fast drilling
Three Blade: Serrated teeth on the top, using a unique design process of inner, outer, and center edges to ensure sharp teeth and speed. The blades are neat and there are chip removal slots, which can quickly remove dust and are not easy to block
Dry & Wet Dual: In a Dry & Wet dual purpose design. Even without water as a coolant, they can still withstand the enormous heat generated by the high-speed rotation of the hole saw. You can also use water to extend the service life the hole saw
Wide Compatibility: Equipped with two types of connecting rods, SDS Plus and SDS Max, both with lengths of 11-13/16 ", suitable for most tools on the market such as electric hammer drills, impact drills, and electric pickaxes
Application: Drill through most walls, such as cement walls, hollow bricks, concrete walls, red bricks, stones, etc. It is easy to install air conditioning pipes, range hood pipes, water heaters, water pipes, smoke pipes, sewers, and other work
Tip: If the drilling depth is affected by the depth of the hole saw, the residue can be cleaned before continuing to increase the drilling depth

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