Blades have a tungsten carbide tip for longer life. Suitable for wood, plywood, OSB, fiber-cement board, MDF, Hardi board, lathe & plaster, and fiberglass. Used with the X-148, X-200, X-230, X-230+, X-305, X-425, HHT-200, HT-200 Hole Cutters.

NOT for use with T-200 model