Model Number:Conversion extension rodDIY Supplies:Woodworking Origin:Mainland China Product Information Features: Suitable for drive sleeves with screwdriver handles or electric screwdriver tools (can use hexagonal holes or three jaw chucks). After installation, the hexagonal joint can be converted into a square head, making it a sharp tool for sleeve installation and conversion Specification: 1/4 square head 50mm long -1/4 "handle can be converted to 6.35mm square head 3/8 square head 50mm long -1/4 "handle can be converted to 9.53mm square head 1/2 square head 50mm long -1/4 "handle can be converted to 12.7mm square head 1/4 square head 65mm long -1/4 "handle can be converted to 6.35mm square head 3/8 square head 65mm long -1/4 "handle convertible Packaging includes: 1/4 * 50mm black extension rod * 1 3/8 * 50mm black extension rod * 1 1/2 * 50mm black extension rod * 1 1/4 * 65mm black extension rod * 1 3/8 * 65mm black extension rod * 1 1/2 * 73mm black extension rod * 1 1/4 * 25mm black extension rod * 1 1/4 * 30mm black extension rod * 1 Precautions: 1. Manual measurement, please allow an error of 1-3mm. Thank you. 2. Due to differences between different displays, images may not reflect the actual color of the item. We guarantee that the style is the same as shown in the picture.