Draper Expert Schröder SDS+ Shank Magnetic Bit HolderExpert Quality, SDS+ chrome vanadium shank with female 1/4" adaptor. Magnetic bit holder made from stainless steel for 6.35mm (1/4") hexagon insert bits in accordance with ISO1173. Packed in polybag.PRODUCT DIMENSION:Height (mm) :141Width (mm) :56Depth (mm) :29