Powerful and reliable ratchet head from Tohnichi! The QH22D fits 1/2" fasteners and provides precise and accurate tightening on all types of nuts and bolts. Easy to use and made with the highest quality - this is the tool you need to get the job done right. Order your Tohnichi QH22D 1/2" Ratchet Head today and experience real power and performance on your jobsite!