hss - bi - metal
hss bi-metal band saw blades, in general:
Säge
· Suitable for a wide selection of materials like steels
  above 1200 N/mm² and stainless steels up to difficult to
  cut materials.

· Supplied in coils of 100 ft (30.5 m), 250 ft (76 m), 328 ft
  (100 m) production coils, or in endless welded bands.