Comparison Console
Kershaw Fatback vs Kershaw Injection 3.0
EDC Knives comparison. Compare price, weight, specifications, materials, and real-world use case.
Command Brief
Recommended read
Kershaw Injection 3.0 stands out as the lightest option for weight, with about a 8% gap from the closest alternative. Kershaw Fatback stands out as the cheapest option for retail price, with about a 20% gap from the closest alternative.
Decision Signals
What stands out
Kershaw Fatback stands out as the cheapest option for retail price, with about a 20% gap from the closest alternative.
Kershaw Injection 3.0 stands out as the most expensive option for retail price, with about a 25% gap from the closest alternative.
Kershaw Injection 3.0 stands out as the lightest option for weight, with about a 8% gap from the closest alternative.
Kershaw Fatback stands out as the heaviest option for weight, with about a 9% gap from the closest alternative.
Kershaw Fatback stands out as the shortest option for closed length, with about a 39% gap from the closest alternative.
Kershaw Injection 3.0 stands out as the longest option for closed length, with about a 65% gap from the closest alternative.
Kershaw Injection 3.0 stands out as the shortest option for blade length, with about a 15% gap from the closest alternative.
Kershaw Fatback stands out as the longest option for blade length, with about a 17% gap from the closest alternative.
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$54.95Most expensive
Weight
102 g (3.60 oz)Heaviest
93.6 g (3.30 oz)Lightest
Dimensions
Blade length
89 mm (3.50 in)Longest
76 mm (2.99 in)Shortest
Overall length
197 mm (7.76 in)Longest
178 mm (7.01 in)Shortest
Closed length
108 mm (4.25 in)Shortest
178 mm (7.01 in)Longest
Blade thickness
3.75 mm (0.15 in)Thickest
2.8 mm (0.11 in)Thinnest
Materials & mechanism
Blade steel
8Cr13MoV
8Cr13MoV
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 tip-up
Use case profile
Best for
Everyday carryTactical use
Everyday carryGeneral everyday tasks
Not best for
Unknown
Heavy duty useSerious work due to small blade size
Common praise
Good grip due to aggressive texturingReliable assisted openingVersatile ambidextrous pocket clip positionsAffordable price
Good build quality for priceErgonomic and secure gripSmooth deployment and lockupReversible pocket clip for ambidextrous carryAttractive custom-style details
Common complaints
Unknown
Blade finish prone to rustOpening and closing action can be stiff initiallyHandle may feel small for large handsNot suitable for very heavy duty tasks
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