This drill bit holder measures 2.36 inches, making it perfect for reaching tight corners and tight spaces. Compatible with electric drills, electric screwdrivers, cordless drills, etc. Covering a wide range of work scenarios, this suite of products meets all your needs. Our drill mounts feature permanent magnets for a secure fit. The ultra-magnetic design ensures a firm grip on drill bits and fasteners, eliminating the hassle of tools falling during work. We've enhanced the magnets to provide better performance. Our strong magnetic extension bit holder is made from high quality for durability. The sleeve is made of steel, which is wear- and high-strength. Our strong magnetic extension drill bit holder features a universal 1/4inch hex shank that is compatible with a variety of quick-change chucks and hex tools. It is an indispensable tool for DIY projects, home maintenance, and general repairs. A great addition to any tool box The sets are all valuable additions. Expand the range of bits - No need to buy a whole set of extended screwdriver bits, just put the short bit or standard bit into the bit holder and use it, which is very useful for assembling screw products with tight space POWERFUL BUILT-IN MAGNET - The magnetic drill bit holder holds drill bits securely in place, reducing the chance of wobbling or falling, ensuring the accuracy of your power drill or other device Colour:Photo Color Material: Carbon steel+ Package Contents: 50 x extension rod Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.