Swhacker broadheads were developed by an engineer who loved mechanical broadheads but hated how they had shallow penetration or broke when hunting large game. The result was a mechanical broadhead whose main cutting blades would open only after passing through the ribs. Swhacker broadheads use a unique "Slice Twice" blade design. The first set of blades are used for cutting hide on the initial impact. The second set of blades open after the initial impact delivering lethal damage.