Features:

-H groove designed to allow drilling into the material chip and pull out the drill faster and more convenient.

-Durable cutting life, suitable for drilling in various materials, such as: new and old cement, bricks, red bricks, gypsum board, granite, marble and so on.

-You need to be installed to the hammer to use , hammer it by repeatedly hammering the completion of drilling.

-Hole powder by discharge rotary drill bit, hammer drill generally brittle objects larger jobs, such as various types of brick, concrete, load-bearing walls, stone type and drilling operations.