Optima Fishtail Chisels 

handle the most critical paring cuts in tricky spots with extremely limited access. The prime example is half-blind dovetail sockets, but once you've added these exquisite chisels to your toolbox, you'll find dozens of other places where they're just the right tool for the job. The 5:1 taper ratio provides clear access to the most common hand-cut dovetail angles. We offer them in 3/8"