Knew Concepts Dovetail Fret Saws:

The best models of Knew Concepts fret saws while cutting waste material for Dovetail Joinery come with a tension lever and swivel adjuster.

The swivel adjuster is designed to swing the rear of the frame out of the way. The ability to set the frame into a "neutral corner" frees you to saw across extra-wide boards while maintaining a natural grip. It swivels 45 ° degrees either left or right for the right-handed or left-handed user, with a lock at the “straight ahead” position. 

A tension lever allows quick release of the blade for replacement or placement through the start hole for scroll work.

A skip-toothed fret saw blade for wood and comes with your new saw.