... tungsten carbide, hardened shank, in aluminum case 15 pcs Carbide Router Bits SetMade of tungsten carbide, hardened shank, in aluminum caseContents: Core ... ,2mm, Mortising: 12.7mm, Dovetail: 12.7mm, Straight: 6.35mm, Panel Pilot: 6.35mm, Straight: 12.7mm, Straight: 19.0mm, 90 ...