Overview Reviews Product Description Engineered with a carbide tip and unique flute design, the speedhammer plus 1" x 16" x 18" drill bit delivers a high-powered performance.The flute clears debris quickly, cuts down on clogging, and minimizes vibration with reduced breakout on through-holes.The carbide tip cuts fast and gives you controlled starts.Designed for all SDS-Plus® and te-c style drills. Irwin Tools Catalog Product Videos Custom Field Manufacturing country CN Product Reviews Write a Review Write a Review × Irwin 1 X 16 X 18" SDS-Plus® Hammer Drill Bit 322055 Rating * Select Rating 1 star (worst) 2 stars 3 stars (average) 4 stars 5 stars (best) Name Review Subject * Comments *