Features: 1Fast Drilling Speed: Our drill bits have the characteristics of high hardness and high impact resistance, and the drilling speed is very fast. 2Complete Accessories: Our drills also come with hex wrenches, and a 200mm long coupling rod for your convenience. 3Cemented Carbide: The wall drilling bit is made of hardened carbide, which is resistant to wear and tear and is strong and durable. 4Easy to Use: The wall drilling bit is easy to operate, with a 200mm long joint, easy to use and fast drilling speed. 5Wide Application: Wall opening bits are used for drilling holes in walls, stones, bricks or installing air conditioners, etc. They are applicable to a wide range of applications. Item Type: Wall Hole Drill Bit Material: Cemented carbide Drill Bit Size: Approx. 50 x 72 x 22mm / 2 x 2.8 x 0.9in Connection Rod Length: Approx. 200mm / 7.9in Package Included: 1 x Pointed Drill Bit 1 x 20cm Shaft 1 x&nbspWall Hole Drill Bit&nbsp 1 x Hex Wrench