Oversized Precision. Tactical Confidence. A Wharncliffe That Commands Respect.

The YoJumbo is Spyderco’s scaled-up evolution of Michael Janich’s Yojimbo 2—designed for users who want maximum cutting power and control in a larger format. With a 4" hollow-ground Wharncliffe blade and coarse-textured G-10 handle, this knife delivers tactical performance, ergonomic comfort, and personal-defense readiness in one formidable package.

Specifications

• Overall Length: 9.29" (236 mm)
• Closed Length: 5.37" (136 mm)
• Blade Length: 3.98" (101 mm)
• Edge Length: 3.98" (101 mm)
• Blade Thickness: 0.145" (3.7 mm)
• Weight: 5.3 oz (150 g)

Features

• Blade Steel: CPM S30V stainless steel offers excellent edge retention and corrosion resistance
• Blade Style: Wharncliffe profile with straight edge for tip strength and slicing precision
• Blade Grind: Hollow grind enhances edge geometry and cutting efficiency
• Blade Finish: Satin finish provides a clean, low-glare surface
• Handle Material: Black G-10 with coarse texture for secure, non-slip grip
• Liners: Nested skeletonized stainless steel liners add strength while minimizing weight
• Locking Mechanism: Compression Lock provides strong lockup and safe one-handed closing
• Pocket Clip: Four-position clip supports tip-up/down, left/right carry
• Deployment: Spyderco Round Hole allows smooth, ambidextrous opening
• Made In: USA – precision-crafted in Golden, Colorado
• Designed For: Tactical use, personal defense, and users seeking oversized control with refined ergonomic