1This drill bit has standard M22 thread which is suitable for most water drilling machines on the market. 2Made of 45# seamless steel tube, the tube body is not easy to deform during drilling. 3The cutting teeth of specially designed shape has great performance. 4The connector is in hexagonal shape, convenient to use. 5Widely used for drilling on reinforced concrete and other materials, such as air conditioning drilling, pipes, road signs, stair handrails, street lighting installation, heating transformation, bridges, airports, viaduct drainage holes.
