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BM-4170BK
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<p style="text-align: center;"> Borde de la hojaAcabado/color de la hoja lisoRecubierto de carbono tipo diamante Estilo/forma de la hojaPunta de lanza</p>The Benchmade Auto Fact 4170BK reimagines the classic Italian stiletto as a premium automatic EDC. Its 3.95 in. CPM-S90V blade with black DLC coating holds an edge exceptionally well, while the Auto AXIS mechanism delivers instant one-handed deployment. At just 3.11 oz., the aerospace aluminum handle with woven carbon fiber inlays makes daily carry effortless. Made in the USA and backed by Benchmade's LifeSharp service, this is a standout choice for serious collectors and working professionals.
SHIPS FROM: MI
COUNTRY OF ORIGIN: A NOSOTROS
MPN: 4170BK
UPC: 610953197421610953197421
The Benchmade 4170BK uses CPM-S90V blade steel, a premium American-made powdered metallurgy stainless steel. CPM-S90V delivers significantly better wear resistance and edge retention than common stainless steels like S30V or S35VN, meaning the blade stays sharper longer with less maintenance. The blade is finished with a black DLC (Diamond-Like Carbon) coating that adds corrosion resistance, reduces friction, and eliminates glare in the field.
Automatic knife legality depends entirely on your state, county, and city, and it is your responsibility to verify local laws before purchasing. Many states now allow adults to legally own and carry automatic knives, but restrictions still apply in certain jurisdictions regarding blade length, carry method (concealed vs. open), and permitted locations. WCUniforms ships within the United States only, and all buyers are responsible for ensuring their purchase complies with local regulations.
The Benchmade 417 Fact is a manual folder that opens via a thumb stud, while the 4170BK Auto Fact adds Benchmade's Auto AXIS mechanism for fully automatic one-handed deployment at the press of a side button. Both share the same blade steel, handle materials, and overall dimensions. The BK suffix on the 4170BK designates the black DLC blade finish, and the 0 in the model number marks it as the automatic variant of the 417 platform.
The Auto AXIS mechanism fires the blade open instantly when you pull the side button downward. A spring-loaded crossbar running through the handle serves as both the deployment trigger and the blade lock. Once open, the same AXIS bar holds the blade firmly under load. To close the knife, press and hold the AXIS button while folding the blade back by hand. The button is accessible from either side of the handle, making the 4170BK fully ambidextrous with no reconfiguration needed.
Wipe the CPM-S90V blade clean after use and apply a light coat of knife oil to the blade and pivot area to prevent moisture buildup during storage. Benchmade's LifeSharp service provides free sharpening, cleaning, oiling, and mechanical adjustments for the life of the knife. To use it, ship the 4170BK directly to Benchmade's facility in Oregon City, Oregon, and they return it sharpened to factory spec. Avoid abrasive scrubbing pads or harsh chemical cleaners that could degrade the black DLC coating over time.
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