DIA014MC P4™ Specialty Multi-Cut Rescue/Utility BladeIt provides up to 100X more life than traditional abrasive wheels when cutting metals! Excellent for metal studs and ductile iron Fast clean cut Vacuum Brazed Technology fused to steel core for protection, durability and heat resistance Designed to be used on a variety of materials Excellent for emergency situations Dry cutting 12" to 16" blades have diamond electroplated side protection which protects the core, reduces heat and prevents binding.