This adjustable magnetic screwdriver extension bit holder is used to join electric screwdriver， screwdriver， screwdriver nozzle， screwdriver head. It's very suitable for electric， pneumatic screwdrivers and other screwdriver bits of power tools， drill extended.

Features:
High hardness !#!amp!*! non-slip， large torque !#!amp!*! long life and durable.
The screwdriver head can lock the connecting rod with strong magnetic.
Must-have accessory for power drills and impact drivers.
Can adjust the depth of batch head screw in.
Great for exchanging the sleeve and the joint， limiting the screwdriver's position and adjustable.
1/4" quick-change hex shanks fit any standard size screwdriver bit， 1/4" impact drivers and hand-held drivers.

Specifications:
Color: Blue
Material: Stainless Steel
Shank Shape: Hex Shank
Diameter of Shank: 6.35mm / 1/4"
Diameter of Sleeve: 13mm / 0.51"
Total Length: 57mm / 2.24"
Item Weight: Approx. 21.8g / 0.76oz
Package Size: Approx. 6 * 1.4 * 1.4cm / 2.36 * 0.55 * 0.55in
Package Weight: Approx. 23g / 0.81oz

Package List:
1 * Adjustable Screwdriver Bit Holder