Bristol Multiple Spline Socket Screwdriver Set consists of: 991X Regular Handle 99X5 Extension 4″ 9961 Blade, Bristol 6-flute Multiple Spline, 0,048″ 9962 Blade, Bristol 6-flute Multiple Spline, 0,060″ 9963 Blade, Bristol 4-flute Multiple Spline, 0,069″ 9964 Blade, Bristol 6-flute Multiple Spline, 0,072″ 9965 Blade, Bristol 4-flute Multiple Spline, 0,076″ 9966 Blade, Bristol 6-flute Multiple Spline, 0,096″ 9967 Blade, Bristol 6-flute Multiple Spline, 0,111″ 9968 Blade, Bristol 6-flute Multiple Spline, 0,145″ 9969 Blade, Bristol 6-flute Multiple Spline, 0,183