ITEM NAME:2x Matched Tongue Groove Router Bit 1/4" Shank Woodworking Cutter Tool Description Specifications: Material: Alloys Colour: Yellow Size: Handle diameter 6.35 mm Brand new Design: anti-kickback Balance: +/- .003" tolerance (allowing smooth operation at high RPMs) Body: Solid Hardened Steel Blade: Industrial grade micro grain car.Using for hand making a drawer or other woodworking. Cutter: CNC ground to a 600 grit, mirror-like finish. Coating: Baked on heat resistant coating prevents build-up of sawdust, resin, and pitch. Build-up & Heat Resistant Teflon Coating.