Magnus Single Bevel 150 BroadheadsSingle Bevel 150 grain 2 blade broadhead 1 3 4" long x 1 1 32 wide (3 pack) The Magnus Single Bevel 2 blade broadhead has a 0. 059 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.