T144 DF Speed for Hard Wood Jigsaw Blade delivers fast straight cuts in wood. • Sharp-ground, side-set teeth make fast cuts. • Bi-metal, fully hardened high-speed steel tooth strip and highly elastic carbon steel body for cutting hard materials. • Large progressive tooth pitch (4-5.2 mm) cuts a variety of solid wooden materials with 5-50 mm thickness. • For use with jigsaws with T-Shank clamping systems.