- [Bit Holder Set] Come with 3pcs drill bit extension with 1/4″ hex shank (6.35mm), Length: 2.36 inch (60mm). NOTE: These chucks cannot work with double head bits!
- [Industrial Grade Material] Made of high quality Chrome Vanadium steel (CR-V) with heat treated for high hardness, wear resistance, durable. The sturdy construction allows a long life of these extensions.
- [Magnetic Bit Extension] Interface has a locking mechanism, built-in magnetic to firmly hold the bit, great for working with hard to reach screws (Only the bottom of the hole part is magnetic, the hex shank is NOT magnetic).
- [Quick Release System] Quick change and release system allows you quickly install, lock and unlock the bit easily with one hand operation. Small and portable bit holder extension set will greatly improve your work efficiency.
- [Wide Usage] 1/4 Inch Hex shank for extending all kinds of screwdriver bits, screwdriver head conversion, hand-held drivers or power drills, converts any variable-speed drill into a power screwdriver.