ITM 3-1/8" X 12" SDS-Max Hollow Hammer Core Bit, International Tool Mfg., Mfr#: 990HH1075

hollow hammer core bit - with innovation toothed crown. For use in concrete, masonry and natural stone. These bits present the following advantages: the roof-shaped guide teeth (1) ensure improved tool alignment and increased rotational stability. The wedge shape is particularly aggressive in collision with steel reinforcement the flat hammer teeth (2) are significantly more efficient in such a prepared drilling base effect is supported by the asymmetrical teeth layout a performance increase exceeding 30% is achieved with this new design. The high hammer power of modern, heavy rotary hammer drills can be fully exploited hollow crown body with more efficient outer spiral for increased durability and minimized friction losses dc quality carbide and special brazing technique large product range of one-piece and multi-piece tools