Eazypower 003245 1/4-Inch Magnetic Nut Setter 1-5/8-Inch Long, 25 Pack Isomax AAA Contractor Quality Machined from high quality Chrome Vanadium Molybdenum tool steel Works in all cordless drills with eazyload quick disconnect bit holders and quick change chucks Plastic tub with cap safely stores all your Eazypower bits for use when you need them.