Equipped with a 2.0”+ cutting diameter, the Jak-Knife is the most reliable 2-blade mechanical broadhead on the market. The O-Ring blade retention system is a proven performer as it has been used on the Wasp Jak-Hammer – the best selling mechanical broadhead of all time. Upon impact, the .036” thick blades open to a maximum cutting diameter. The Jak-Knife gives bowhunters the best of both worlds: A wide-cutting broadhead with field point accuracy and no worry of mechanical failure. And the best part of all? It's made right here in the USA with the quality you expect from American products. Available in 100 and 125 grains. Comes in a 3-pack.