Thumb Score: +28 Amazon has 5-Pack Lenox 6" 18 TPI Bi-Metal Cutting Reciprocating Saw Blades on sale for $5.69. Shipping is free with Prime or orders $25 or more. Thanks to Deal Hunter rsvpd for finding this deal. Alternatively, Grainger has 5-Pack Lenox 6" 10 TPI General Cutting Bi-Metal Reciprocating Saw Blades for $5.69.