Overview Reviews Product Description Built to perform in today's most demanding trades, the speedhammer plus 5/16" X 4" x 6" drill bit penetrates fast and clear debris efficiently.Its short drilling head reduces breakout when drilling through-holes.The unique flute design clears dust, reduces clogging, and minimizes vibration.Compatible with 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 5/16 X 4 X 6" SDS-Plus® Hammer Drill Bit 322022 Rating * Select Rating 1 star (worst) 2 stars 3 stars (average) 4 stars 5 stars (best) Name Review Subject * Comments *