Hole Saw CutterThe wall drill is made of carbide-tipped metal, stable and durable, fast punching with long service life. High QualityHigh frequency welding technology, the welding ports are very strong with smooth welding mouth inside and out. Main function Opening hole operation of brick walls and structures, such as B. Clay walls, mixed brick walls, cement walls, moss walls, red brick walls. Note: Not for use in steel, tile and stone. Ideal forWidely used to install air conditioner, oil smoke riser and open sewer pipe etc. Buying TipsPlease note that hole saw and connecting rod are sold separately, a variety of sizes to choose from. suitable for SDS-plus shank impact drill. Size: hole saw 55mm Concrete wall drill SDS Plus Hole Saw Cutter Concrete Cement Wall Drill for Brick Concrete Cement Block Professional quality concrete hole saw The wall drill is made of chrome-vanadium steel and tipped with carbide, stable and durable, drills quickly with a long service life. Fast drilling, increased drilling efficiency, easy and quick to use. Widely used for opening holes in walls and brick structures, e.g. B. adobe walls, mixed brick walls, cement walls, moss walls and red brick walls. Such as installing air conditioning, range hoodsOil vapor and open sewer pipe hole etc.