Stable and Durable: Carbide cutting tips and heat-resistant coating for long-lasting, sharp and long-lasting performance, precision-balanced for smooth operation. Good wear resistance, long service life. Extra Long: Extra long straight router bit with 8 mm shaft diameter, 14 cutting width. Extra long straight bit for smooth wood cutting. Professional quality cutters, solid hardened steel body to control depth of cut and work safely. Wide Range of Applications: Use this set of versatile, extra-long straight cutters for all straight cuts, with 2-flute carbide burrs. Can better cut deep and smooth edges. What You Get: 3 x 8mm Shank Straight Router Bits. Shaft diameter: 8mm; Cutting diameter: 1/2 inch (12.7 mm); Cutting length: 50mm/63mm/76mm; Total length: 83mm 95mm 109mm.