Diablo's Wood Demon carbide teeth jig saw blades provide unmatched finish, speed and superior cutting life in fine finish wood cutting applications. High-performance carbide teeth deliver up to 50X longer cutting life than standard jig saw blades. An optimized blade design with Perma-Shield coating provides friction-less precise cuts in straight, angled, and intricate curved cutting applications. The bi-directional tooth design features teeth facing in opposite directions at each end of the blade to deliver fine top and bottom finishes. A T-shank design fits all combo and most U-shank cordless and corded jig saws.