The Milwaukee 48-00-5186 is a 6 in 24 TPI Metal Cutting Sawzall blade set. Milwaukee Metal Cutting Sawzall blades are made with Matrix II bi-metal teeth to keep a sharper tooth edge longer. The tough bi-metal design allows for faster cutting, and longer life blades that bend without shattering. Milwaukee designs and manufactures Sawzall blades for the toughest professional applications. Material, blade geometry and heat treating are designed to maximize metal cutting performance. The 48-00-5186 contains 5 Reciprocating Saw blades.