15-Pc 1/4" & 3/8" Dr. Impact Temper Torx Star Security Bit Set Drop Forged, Heat Treated Chrome Vanadium Steel Corrosion-Resistant Black Oxide Finish Also Fits Standard Torx Sizes: T and TS Use for temper-proof star fasteners in today's cars, trucks and appliances Precision-Machined Tip for Exact Fit