Draper Magnetic Bit Holder (300mm) 1/4" (F) x 1/4" (M)Magnetic bit holder, designed for use in power drills and driver handles. The (male hexagon) shaft is manufactured from chrome vanadium steel, that’s hardened and tempered. The bit holder (female hexagon) is cold forged from stainless steel. A universal tool, essential for professional and DIY toolboxes.PRODUCT DIMENSION:Height (mm) :372Width (mm) :63Depth (mm) :16