The Magnus Single Bevel 2-blade broadhead has a 0.047" (125 gr) or 0.059" (150 gr) main blade and is razor sharp. It is designed to penetrate heavy bone and tissue by twisting on impact and continuing with a wound tract. Single-bevel broadheads are known for their large wound channels and quick kills, and Magnus's deliver on all expectations. You can sharpen the main blades yourself or replace them.