Solid Flexible Carbon Steel Hacksaw BladeTempered to provide hard edge with flexible back. Specially hardened to induce toughness. Economy blade for sawing light to medium-hard materials. A good balance of wear resistance and mechanical shock absorbing properties. Virtually unbreakable. Applicable Materials: Most Metals; Cutting Edge Material: Carbon Steel; Cutting Length: 12 in; Quantity: 100 in bulk; Teeth Per Inch: 18; Thickness: 0.0250 in; Tooth Shape: Wavy Edge; Type: Hack Saw; Width: 1/2 in; Weight: 0.04 lb.