High carbon Steel Wear resistant 3/8 Extension Drill Bits Bar Bit Set Unique Design Ratchet Socket Extender Tool Features Using high-quality high-carbon steel, wear-resistant, wear-resistant, and long service life. 3/8" Extension Drill Bits Bar Bit Set for Power Tools. Unique Design: the anti-dropping steel ball is better fixed: the self-locking device is not easy to slip or fall off and cause dangerous situations. for R groove design, greater bearing capacity. Scope of Application: It can be used for installation on tools with shapes such as pneumatic screwdrivers, electric screwdrivers, air drills, electric drills, and manual screwdrivers. Specifications: Material: High-carbon Steel Color: As Shown in the Picture Product Dimension: approx. 7x1.5x1cm/2.76x0.59x0.39inches Net Weight: 60g/0.13lbs Usage: suitable for screwdriver handle or electric screwdriver tool(three-jaw chuck) to drive the sleeve. After installation, the joint can be converted into a square head, which can be used for the installation of the sleeve. A powerful tool for conversion. Package Includes: 1PC Sleeve Extension Rod or 2PCS Sleeve Extension Rod Note: Please allow 1-2cm errors due to manual measurement. Due to the difference between different monitors, the picture may not reflect the actual color of the item. _x000D_ _x000D_