Matrix II high speed steel teeth deliver maximum durability. Alloy backing steel provides extended blade life. Precision formed teeth create fast, clean cuts. For cutting common materials 3/16", 5/16" thick and very hard materials 5/16", 1/2" thick Milwaukee standard / deep cut portable band saw blades are designed to maximize performance of any portable band saw that takes a 44-7/8" blade. They will deliver long tooth life and exceptional durability in metal cutting applications, including strut, conduit, angle iron, copper tube, threaded rod, and pipe. Tooth form, pitch, and set have been designed to deliver straight, accurate cuts across a broad range of materials.