The strongest fixed blade knife ever produced by Extrema Ratio

The first model produced in N690 steel (58HRC) with a thickness of 8.6 mm, for a total weight of 1 kg.

Available in Dark Stone and Satin versions

Fat Boy is characterized by an exceptional resistance. It can be defined as a one-of-a-kind striking tool. Thanks to its generous size, Fat Boy is ideal for all heavy jobs, from splitting to disengagement in extreme scenarios.

These spectacular features turn into pure fun if we move Fat Boy outdoors or prepping, where chopping and batoning become just formalities.

Fat Boy is available in Satin and Dark Stone, both equipped with a black Cordura sheath with an anti-cutting rubber blade lock. The MOLLE system on both sides can be used by both right-handed and left-handed, depending on the side where the two thigh vertical strips for height adjustment are positioned.

Extrema Ratio S.R.L. Via Traversa delle Ripalte 72/74/76/78 – 59100 PRATO – Italy – info@extremaratio.com