19 useful router bits delivered in a practical hardwood case to have them within reach! This is a more economical solution than purchasing these items separately! These bits feature super-strength superior steel body or solid carbide bodies, Non-Stick Orange Shield Coating and cutting edges made of SinterHip Hi-Density Industrial Chrome Carbide for a long-lasting performance. More features: Silver-copper-silver tri-metal brazing for more endurance and 3 times longer lasting mirror finish obtained by multi-axis grinding. After a test performed by Wood Magazine, CMT orange bits have been rated the best overall router bits in comparison to other brands.From the ManufacturerThe 13 piece Dovetail & Straight bit set is designed specially for the Leigh D4 jig and includes the new 8 degree dovetail with 7/16 cutting diameter.