Carbide Tipped - Micro-grain grade provides increased strength and maximum resistance Wood router bits are very sharp, ensuring that you get clean, smooth, and flawless woodwork results every time. The dovetail bit can be used with a dovetail jig for half-blind dovetail joints or can be used with dovetail bits to produce dovetail joints Can be used in hardwood, cork, wood, and other smooth-surfaced synthetic woodworking workers. Avoid cutting metal and non-wood materials. Specification: Material: 45# Steel Carbide Tip: YG8X Body: Solid Hardened Steel Blade: Industrial Grade Micro Grain Carbide Shank Diameter: 1/4" Cutting Diameter: 1/2" and 5/8" Blade Length: 1/2" and 9/16" Total Length: 2-5/16" and 2-1/2" Package: 2pcs Dovetail Joint Router Bit Yeuri