Sealey-VS0291-Air-Hammer-Impact-Driver-Sealey-VS0291-Used-in-conjunction-with-a-standard-air-hammer-at-low-pressure-&-5-16-8mm-Hex-bit-Vibration-shakes-the-screw-loose-doing-the-hard-work-for-you-while-rotation-is-applied-with-the-handle-Ideal-for-corroded-countersunk-overtightened-&-painted-screws-No-more-stripping-of-screw-heads-Sealey-VS0291-Air-Hammer-Impact-Driver