Magnus Black Hornet SerRazor 4 Blade 100 gr. 3 pk.. Main blade features a thickness of .059 thousands of an inch and the bleeder blade features a .040 thousands of an inch thickness. Made of knife grade stainless steel with a patented diamond tip. Package Contents: Magnus Black Hornet SerRazor Four blade fixed blade cut on contact broadhead that features a 1 cutting diameter on the chiseled serrated edge main blade and a 7/8 cutting diameter on the bleeder blade. Main blade features a thickness of .059 thousands of an inch and the bleeder blade features a .040 thousands of an inch thickness. Made of knife grade stainless steel with a patented diamond tip.