Diablos Demo Demon carbide teeth jig saw blades provide unmatched durability and superior cutting life when making fast cuts in plastic and plexiglass applications. High-performance carbide teeth deliver up to 50X longer cutting life than standard jig saw blades. The optimized blade design and Perma-SHIELD non-stick coating reduces heat for melt-free cuts. An aggressive tooth geometry makes fast cuts with ease. A T-shank design fits all combo and most U-shank cordless and corded jig saws.