Features:

Stainless Steel Locking Ball Ensures Secure Fit.
Sockets Snap-On Tightly & Won't Slip Off
1/4-inch Hex Shank Prevents Stripping During High Speed Drill Operation
Super Strong Heat Treated Chrome Vanadium Steel for Normal & Impact
Use - Sandblasted Finish
Converts All Power Drills into Speedy Socket Drivers.
Applies to the screwdriver handle or electric
screwdriver tools (hexagonal hole or three jaw chuck can be)
driven sleeve is used, can be the original hexagonal side after
installation on size into square size, which
can be used for the installation of the sleeve,
is a good accessories to convert

Specification:

Size:   inch L                  
1/4"*1/4"*50mm--1/4 "shank can be converted into 6.35 mm square
3/8"*1/4"*50mm--1/4 "shank can be converted into 9.53 mm square
1/2"*1/4"*50mm--1/4 "shank can be converted into 12.7 mm square
Material:Chrome vanadium steel cr-v                                    

Package include

1X Socket Adapter Hex Shank set(3pcs a set)