The next generation in the Montec line of broadheads, the Montec M3! The closed vent design offers bowhunters the quietest flight possible! The M3 features an even stronger stainless steal, so it is sharper! 100% Steel Tough, Cut-On-Contact Design, Diamond Cut Sharpness. One-Piece MIM Construction.  100% Spin Tested. 1 1/16" Cutting Diameter.