The DeWALT Elite Series demolition carbide tipped reciprocating saw blades last up to 30% longer vs Diablo and feature precision welded carbides along the cutting edge to withstand multiple nail strikes. Carbide teeth are ground to quickly cut through wood with nails. Iron Blast Technology surface enhancement strengthens the blade to resist fatigue and teeth stripping. The tall, thick blade profile is designed to provide durability for tough demolition applications.Made in the USA