Item Type: Concrete Wall Cutter Drill Bit <br>Material: Overall: Carbon steel, Drill Core: Cemented carbide <br>Handle: Round handle <br>Hole Saw Diameter: Approx. 30mm / 1.2in <br>40mm / 1.6in <br>50mm / 2in <br>Handle Length: Approx. 350mm / 13.8in<br>1、Suitable for brick walls, red bricks, foam bricks, hollow drills, etc., can be used to install air conditioners, range hoods or washing machines <br>2、Carbide core drill core is welded with high quality alloy, durable for a long service life <br>3、Combination of round alloy blades, each blade bears part of the workload, and cutting edges are not easy to appear <br>4、The kit includes 30mm, 40mm, 50mm core bits, and 350mm extension shank, easy to install <br>5、The product possess stable structure, excellent performance and long service lifeDo not use steel, tiles and stones.<p>3 x Hole Saw</p><p>1 x Handle</p><p>1 x Drilling Core</p><p>1 x Wrench</p><p>1 x Screw</p><p>4 x Storage Box(random color)</p>