TAJIMA VRB2-100B V-REX II Premium Tempered Steel Utility Knife Blades, 100 Blade Pack. High quality Japanese technology. Thicker blade to track straight and resist shattering. Advanced multi-step sharpening to form a razor-sharp cutting edge. Unique blade geometry for stronger, longer-lasting cutting points. High-carbon steel for strength and superior cutting edge performance. Tempered to further harden and strengthen the blade and cutting edge.