Magnus Black Hornet Ser-Razor 2 Blade 100 gr. 3pk.. Blade features a thickness of .059". Made of knife grade stainless steel with chiseled serrated edge and a patented diamond tip. Package Contents: Magnus Black Hornet Ser-Razor Two blade fixed blade cut on contact broadhead that features a 1 1/4 cutting diameter. Blade features a thickness of .059. Made of knife grade stainless steel with chiseled serrated edge and a patented diamond tip.