Tonsiki 1/4 inch Magnetic Bit Angle Driver Screwdriver Bits 360 Degree Adjustable Tool 105 Degree Screwdriver Bit Holder & 1/4 inch Magnetic Bit Reception 360 degree adjustable, apply to all electric drill and socket wrench, which allows to extend to where drill can't reach to. Built-in strong magnet for good holding power, accepts all 1/4" standard hexagon shank bits,fit for all electric drills and spanners. With magnet and lock device, the batch of head and sleeve will not fall. Better accessibility to drive screws and drill holes in tight spaces.