The jobsite-tough HERCULES™ Carbide Tip Router Bit Set includes five precision-engineered bits that deliver up to 3X longer life* even in rigorous applications. The Electra-Shield® non-stick coating reduces friction and build-up. The 1/4 in. round shank has a universal design compatible with most major brand name routers. The anti-kickback design improves accuracy for smooth, controlled cuts.