Wera-05057676001-897-4-IMP-Impaktor-Bit-Holder-with-Retaining-Ring-&-Magnet-Wera-05057676001-p-This-stainless-steel-bit-holder-from-Wera-is-suitable-for-use-with-power-driven-screwdrivers-&-is-fitted-with-a-retaining-ring-&-magnet-for-a-secure-fit-in-the-holder-Suitable-for-bits-with-1-4in-hexagon-head-drive-p-Wera-05057676001-897-4-IMP-Impaktor-Bit-Holder-with-Retaining-Ring-&-Magnet