Replacement blades for Spear and Jackson Predator bow saws. Specifications • Blade Length: 21" (533mm) • Teeth: 4 PPI Hardpoint teeth (Peg Tooth) Features and Benefits • Hardened and tempered carbon steel blade • Very rapid cutting action • Peg Tooth form ideal for cutting hard, dry wood • Hardpoint teeth for extended blade life • Location pin slots for quick and easy blade change