The Trijet SDS-plus is the most powerful hammer drill bit from Heller and has the longest service life for concrete and reinforcement steel rebar applications. On the one hand, the patented Trijet drill head is characterized by its extremely robust and powerful drilling progress. On the other hand, it ensures maximum effectiveness and speed as well as minimum vibration when drilling due to its optimized helix design. In comparison to the other hammer drill bits, the Trijet SDS-plus has the lowest cost per hole. Tips and tricks for professional use: Click here for the Heller video tutorial