CMT router bits were Rated Best Overall Router bits by Wood Magazine after a comparison test with the other brands * Rather than buying each single item included in the hardwood case, purchasing the full bit set will result in a better economical solution * High-strength superior steel, SinterHip Hi-Density Industrial Chrome Carbide , Anti-kickback design, Non-Stick Orange Shield Coating , long-lasting * Shank router bit set * Featuring the finest steel and carbide * It includes 13-piece of 1/2 inches shank