Cobalt Bi-hard blade is a professional grade hacksaw blade that stays cooler, remains sharper while cutting harder materials like steel or other hard metals, One piece construction, cannot edge strip and avoids any of the weld like problems associated with bi-metal blades, Cobalt Bi-Hard blades are flexible, supple, shatterproof and strong enough to hold 800 lbs, 12"" Overall length fits all popular frames, Extremely flexible and supple, will not shatter, For cutting hard metals, fiberglass, plastic and wood, Raker tooth pattern cuts clean, fast cuts with less effort, Size: 12"" x 24T, SKU: ISN14990