SAE & Metric 10 pc Magnetic Nut Driver Set 1/4" Shank Power Cordless Drill Sandblasted, heat treated Chrome vanadium steel Precision milled 5 pc (SAE) :1/4", 5/16", 3/8", 7/16", 1/2" 5 pc (Metric): 6, 7, 8, 10, 12mm 1/4" Shank fits most powered corded or cordless drill