Bosch 1 In. x 21 In. Spline Speed-X Rotary Hammer Bit - HC4051

Bosch brings constant innovation to concrete and masonry drilling. Bosch developed custom-manufactured carbide and diffusion bonding technology to provide better performance and durability. Speed-X™ delivers high performance in precision anchoring and drilling applications. Benefits Tungsten-carbide tip provides superior wear resistance in tough applications Narrow flute back for reduced friction between bit and material Active-centering tip for optimum guidance when drilling in concrete and reinforced concrete Inclined side cutters for aggressive drilling Large flute volume for fast drilling, dust transport and less clogging