Our S3456XF bi-metal reciprocating saw blades feature 9 inch (225mm) extra long length, 10/5TPI variable pitch teeth, and premium BIM42 high-speed steel construction, designed for fast, smooth cutting in wood, metal, pipe, PVC up to 175mm thick. Universal 1/2″ shank fits all major brands corded/cordless reciprocating saws, ideal for heavy-duty demolition, construction, plumbing, woodworking and home improvement projects.