3pcs 1/4" 80/120/140mm Hex Shank Quick Release Magnetic Screwdriver Extension Bit Holder Connection Rod Adapter Sleeve

Features:
High hardness non-slip, large torque long life and durable.
The screwdriver head can lock the connecting rod with strong magnetic.
Change external six angle into internal six angle - Strong Practicability.
Great for exchanging the sleeve and the joint, prolonging the connecting rod.
1/4 quick-change hex shanks fit any standard size screwdriver bit, 1/4 impact drivers and hand-held drivers.
Widely used in situation of narrow space, to reach the work-place where hands can not reach.