The Irwin IRW10504156 Sabre Saw 818R Blades (200mm) comes in a pack of 25 with 18TPI.
These metal cutting blades are suitable for use with materials 1.5 to 10mm (1/16 to 3/8 in) thick, dependent on the TPI of the blade.
Specifications:
Blade Type: Metal Cutting, 818R. 200mm x 18TPI.
Pack Quantity: 25.