This premium 5 pcs hex shank bit driver extension set includes 3 pcs adapters- 1/4" 3/8" 1/2", and 2 pcs extension bars,which is designed to meet a variety of needs fexibility

This 1/4 drill bits adapters are made from heavy-duty heat treated Chrome-Vanadium steel in order to provide the durability for a hard use of your impact driver bit set

This impact socket adapter set is treated with a rust-proof and corrosion-resistant black phosphate coating for enhanced durability. MADE TO LAST FOR A LIFETIME

Detent ball locks onto socket adapters tightly and securely to ensure safety for high torque tasks under impact and power tools

This 5pcs impact socket adapter set is perfect for your impact driver or power drill / electric screwdriver, they fits all quick change chucks as well as standard drill chucks