Luckmart 8pcs Socket Adapter Set Hex Shank to 1/4' 3/8' 1/2' Impact Driver Drill Bits Bar - -. Luckmart 8pcs Socket Adapter Set Hex Shank to 1/4" 3/8" 1/2" Impact Driver Drill Bits Bar - -. Brand new and high quality 。 Handy for fast driving of nuts, bolts and fixings 。 Great for a screwdriver handle or electric screwdriver tool drive sleeve 。 Package included: 8pcs x hex socket bits 。 Easy To Install 。 Specification: 。 Brand new 。 Color: as picture shows 。 Dimension(inch): (approx.) 。 1/4 x 1/4 x 50mm ------ 1/4 " shank can be converted to 6.35mm square head 。 3/8 x 1/4 x 50mm ------ 1/4 " shank can be converted to 9.53mm square head 。 1/2 x 1/4 x 50mm ------ 1/4 " shank can be converted to 12.7mm square head 。 1/4 x 1/4 x 65mm ------ 1/4 " shank can be converted to 6.35mm square head 。 3/8 x 1/4 x 65mm ------ 1/4 " shank can be converted to 9.53mm square head 。 1/2 x 1/4 x 72mm ------ 1/4 " shank can be converted to 12.7mm square head 。 1/4 x 1/4 x 25mm ------ 1/4 " shank can be converted to 6.35mm square head 。 1/4 x 1/4 x 30mm ------ 1/4 " shank can be converted to 6.35mm square head。 。 Package included: 8pcs x hex socket bits 。 。 。 。