8Pc Drill Socket Adapter Set Impact Nut Driver Hex Extension Bits 1/4" 3/8" 1/2"

Specifications:Material: Chrome vanadium steel CR-VColor: BlackProduct size: approx. Turn 1/2"( 12.5mm) ,3/8" (10mm) ,1/4" (6.3mm) connector1/4 x1/4 x 50mm length---1/4 " shank can be converted to 6.35mm square head3/8 x 1/4 x 50mm length---1/4 " shank can be converted to 9.53mm square head1/2 x 1/4 x 50mm length---1/4 " shank can be converted to 12.7mm square head1/4 x 1/4 x 65mm length---1/4 " shank can be converted to 6.35mm square head3/8 x 1/4 x 65mm length---1/4 " shank can be converted to 9.53mm square head1/2 x 1/4 x 73mm length---1/4 " shank can be converted to 12.7mm square head1/4 x 1/4 x 25mm length---1/4 " shank can be converted to 6.35mm square head1/4 x 1/4 x 30mm length---1/4 " shank can be converted to 6.35mm square headQuantity: 1 Set (8 Pcs)Note:Please allow 1-3mm error due to manual measurement. pls make sure you do not mind before you bid