Wall Drill Bit 30 40 50mm Concrete Cutter With Red Brick Stone Key Feature:1. Suitable for brick walls, red bricks, foam bricks, hollow drills, etc., can be used for the installation of air conditioners, hoods or washing machine2. The core of the carbide drill bit is welded with high-quality alloy, durable for long service life3. The combination of alloy round blades, each blade bears part of the load, and the cutting edges are not easy to appear4. The set includes 30mm, 40mm, 50mm core drill bits and 350mm extension shank, easy to install5. The product has stable structure, excellent performance and long service lifeSpecification:Item Type: Concrete Wall Drill BitMaterial: General: Carbon Steel, Drill Core: CarbideChuck: Round Handle Milling Cutter Diameter: Approx. 30mm/1.2in40mm/1.6in50mm/2in Handle Length: Approx. 350mm/13.8inList Packing:3 x Cutter1 x Chuck1 x Drill Core1 x Wrench1 x Screw4 x Storage Box (Random Color)Note:Do not use steel, tiles and stones. 1) we accept Alipay, West Union, TT. All major credit cards are accepted through the payment processor's secure escrow. 2) Payment must be made within 3 days of placing the order. 3) If you can't check out immediately after the auction ends, please wait a few minutes and try again, payments should be completed within 3 days. About Shipping 1.