Lasts up to 3x longer than a standard drill bit. The Full Carbide Head on the Expert SDS max-8x is an advanced 4-cutter design made from a single piece of the toughest metal: It doesn't jam and presents no weakness on impact. Thanks to Bosch Carbide Technology and the Full Carbide Head, the Expert SDS max-8x lasts far longer than regular hammer drill bits. It punches through rebar effectively so there is no need to stop, re-target or change bits when you strike steel. For construction professionals. The SDS max-8X Hammer Drill Bit enables 50% more durability in even the toughest applications. Its full-carbide, 4-cutter head guarantees exceptional performance and resistance in reinforced concrete. The bit is extremely high stress and heat resistant thanks to the strong and long-lasting welded bond between its steel body and full carbide head. Additionally, its ultimately sharp 90° centering tip provides an accurate start when drilling. The bit is designed for drilling in reinforced concrete and standard concrete. It is compatible with SDS max hammer drills of all brands. High-quality material, Flexible design, Ideal quality.