1,000 More Cuts in Nail Embedded Wood;Carbide Technology + Best Tooth Design = Longest Life;Carbide Teeth for 30X Life in Nail-Embedded Wood and Residential Materials;Fang Tip design for fastest plunge cutting in nail embedded wood;Nail Guard allows users to Rip Nails Not Teeth;Optimized for Cordless. 25% More Cuts per Charge;Made in the USA;Available in 6", 9", and 12" lengths in 1PKs, 3PKs, and 5PKs