Features: brand new and high quality Stainless steel has impact resistance and maximum durability. The sturdy structure makes these expansion devices have a long service life Self-locking design, quick replacement and loosening of the screwdriver bit, no cumbersome steps, convenient and fast Specially designed for 2.36" hexagon shank drill bits, suitable for the transfer of electric drills, screwdrivers, drill bits, etc., expanding various screwdriver bits and screwdriver bit conversion applications The extension length of 60 mm is very convenient because it makes it easier for you to manipulate the electric drive around the workpiece. One 60mm 2.36" hexagonal shank screwdriver handle, which can be easily used with any chuck, hand-held screwdriver or electric drill Specifications: Material:45 # Steel Length：Approx.60mm/2.36" Diameter：Approx.6.35mm/0.25" Note: 1.Please allow 1-2mm errors due to manual measurement, make sure that you do not mind before you order. 2.Due to the difference between different monitors, the picture may not reflect the actual color of the item. Package includes: 1PcxHexagonal Handle Quick Release Self-locking Extension Rod