Comparison Console
Kershaw Fatback vs Kershaw Injection 3.5
EDC Knives comparison. Compare price, weight, specifications, materials, and real-world use case.
Command Brief
Recommended read
Kershaw Fatback stands out as the lightest option for weight, with about a 18% gap from the closest alternative. Kershaw Fatback stands out as the cheapest option for retail price, with about a 27% gap from the closest alternative.
Decision Signals
What stands out
Kershaw Fatback stands out as the cheapest option for retail price, with about a 27% gap from the closest alternative.
Kershaw Injection 3.5 stands out as the most expensive option for retail price, with about a 36% gap from the closest alternative.
Kershaw Fatback stands out as the lightest option for weight, with about a 18% gap from the closest alternative.
Kershaw Injection 3.5 stands out as the heaviest option for weight, with about a 22% gap from the closest alternative.
Kershaw Fatback stands out as the shortest option for closed length, with about a 6% gap from the closest alternative.
Kershaw Injection 3.5 stands out as the longest option for closed length, with about a 6% gap from the closest alternative.
Kershaw Injection 3.5 stands out as the shortest option for blade length.
Kershaw Fatback stands out as the longest option for blade length.
Specification Profile
Relative dimensions at a glance
Each axis is normalized against the largest raw value among the products in this comparison. Farther outward means a larger value, not necessarily a better result. Axes with an unverified value are omitted.
Price & carry
Retail price
US$43.99Cheapest
US$59.99Most expensive
Weight
102 g (3.60 oz)Lightest
124.74 g (4.40 oz)Heaviest
Dimensions
Blade length
89 mm (3.50 in)Longest
88.9 mm (3.50 in)Shortest
Overall length
197 mm (7.76 in)Shortest
203.2 mm (8.00 in)Longest
Closed length
108 mm (4.25 in)Shortest
114.3 mm (4.50 in)Longest
Blade thickness
3.75 mm (0.15 in)Thickest
3.05 mm (0.12 in)Thinnest
Materials & mechanism
Blade steel
8Cr13MoV
8Cr13MoV Stainless Steel
Handle material
Glass-filled nylon
G-10 Laminate
Finish
Black-oxide coating
Bead Blast
Lock type
Liner Lock
Liner Lock
Opening method
Assisted opening with flipper
Thumb Stud
Clip type
4-position deep-carry (right/left; tip-up/down)
Reversible steel pocket clip, tip-up carry
Use case profile
Best for
Everyday carryTactical use
Everyday Carry (EDC)General utility tasksAmbidextrous use
Not best for
Unknown
Unknown
Common praise
Good grip due to aggressive texturingReliable assisted openingVersatile ambidextrous pocket clip positionsAffordable price
High performance 8Cr13MoV blade steel offers good edge retentionSmooth manual thumb stud opening and secure liner lockReversible pocket clip for left or right-hand carryWell-textured G-10 handle for secure gripAesthetic custom details from designer Todd Rexford
Common complaints
Unknown
Not assisted opening, manual only
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