Diablo DS0914BF 9" Bi Metal Reciprocating Saw Blades Blade Count:5 Blades enabling faster starts and even enabling faster starts and even quicker results The 2630 is a high performance circular saw that delivers the most durability in a cordless saw The blade’s Full Contact Arched Design with ultra hardened cutting edge provides faster cuts in fewer passes resulting in less heat build up to deliver 5X longer cutting performance than those of standard blades Full Contact Arched Design provides more working teeth within the material for faster cuts in fewer passes resulting in less heat build up to deliver 5X longer cutting performance