Reiff Knives Circadian EDC Fixed Blade

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The Circadian Series is a growing series of EDC-sized fixed blades in a selection of different specialized blade shapes on a common handle chassis, giving you the ability to customize your Circadian to the rhythms of your daily life.

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Reiff Knives Circadian EDC Fixed Blade Knife 3.28" CPM-MagnaCut Stonewashed Sheepsfoot Blade, B… our price: $285.00
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Reiff Knives Circadian EDC Fixed Blade Knife 3.28" CPM-MagnaCut Stonewashed Sheepsfoot Blade, O… our price: $285.00
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Reiff Knives Circadian EDC Fixed Blade Knife 3.28" CPM-MagnaCut Black DLC Sheepsfoot Blade, Bla… our price: $299.00
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Reiff Knives Circadian EDC Fixed Blade Knife 3.28" CPM-MagnaCut Black DLC Sheepsfoot Blade, OD … our price: $299.00
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Reiff Knives Circadian FAQ

The Reiff Knives Circadian is a compact, USA-made everyday carry fixed blade engineered with CPM-MagnaCut steel and ergonomic Micarta handles. It offers versatile utility across multiple blade profiles and finishes to suit hard-working daily routines.

What blade steel does the Reiff Circadian use?
The Reiff Circadian is built with CPM-MagnaCut stainless steel across all blade configurations. MagnaCut delivers a unique combination of exceptional toughness and high edge retention while maintaining full stainless corrosion resistance, allowing this compact blade to tackle demanding cutting tasks without chipping.
What blade shapes are available in the Circadian series?
The Circadian is available in both clip point and sheepsfoot blade profiles, with options for stonewashed or black DLC finishes. The clip point version features a generous belly suited for hunting, skinning, and general outdoor slicing, while the sheepsfoot version offers a slightly thinner profile optimized for precise tip work and heavy push cuts.
What handle materials are available on the Circadian?
The Circadian features contoured canvas Micarta handle scales available in black or OD green. The handle is shaped with enough thickness and contouring to fill the hand comfortably, providing a secure grip when bearing down into tough materials.
How do you carry the Reiff Circadian fixed blade?
Each Circadian comes with a molded Kydex sheath paired with a Blade-Tech lock attachment. The sheath provides positive retention with a distinct click and allows you to configure the knife for either vertical or horizontal carry on a belt or pack strap.
Where are Reiff knives made?
Reiff knives are made in the United States. The Circadian series is manufactured in the USA using American-made materials such as CPM-MagnaCut steel and canvas Micarta.