Teblacker 14Pcs Power Nut Driver Drill Bit Set Hex Socket Adapter Bolt Driver Repairing Tool Suitable for Quicker Change Chuck Electric Screwdriver

PREMIUM NUT DRIVER SET: Each impact driver bit set is constructed of forged heat-treated chrome vanadium steel for high torque output and can be used as a nut driver set for impact drill or driver. POWER NUT DRIVERS: The drill sockets in this drill bit socket set are power tool accessories designed to fasten bolts and self-tapping screws and come in a 6-point socket orientation. QUICK-CHANGE: Each 1/4” hex shank nut driver can be used with a variety of quick-change chucks and drills. INCLUDES NUT DRIVER SET IN CASE: The plastic organizers store and carry around the 20 nut drivers and are compact so you can keep them in your tool bag or toolbox easily. NUT DRIVER METRIC AND SAE SIZES: Metric: 4mm 5mm 5.5mm 6mm 7mm 8mm 9mm 10mm 11mm 12mm. Standard: 5/32 3/16 7/32 1/4 9/32 5/16 11/32 3/8 7/16 1/2 Inch.