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The Tru-Cut ThunderTwist SDS-Max Hammer Drill Bit is a professional-grade masonry tool designed for heavy-duty applications. It features a specialized TriCarb grade carbide tip that guarantees a longer service life and faster penetration by increasing the tool's chiseling action. The unique ThunderTwist flute design is engineered for superior dust evacuation and is combined with a copper brazing alloy to create one of the most reliable drill bits available. Each bit is manufactured in the USA using high-quality American chrome-molybdenum nickel steel, which is vacuum heat-treated and shot-peened to ensure maximum strength and durability under the most rigorous drilling conditions.