The Klein Tools 6 in 1 nut driver has 3/16, 1/4, 5/16, 3/8, 7/16 and 9/16 sizes on one tool.
It has a cushioned handle and a heavy duty shaft and a wrench assist collar to break free froze nuts and bolts.
We have more tips in our home improvement book https://amzn.com/B01MRGO8C5
How to make L&U bolt-anchor bolt bending machine
If you want to know more information, please contact us freely.
Email: cherie@zhenhuan-machine.com
Skype: yuexuanmao
Mobile: 0086 13485105931
www.zhenhuan-machine.com