Spyderco Police 4 Lightweight K390 Folding Knife - Overview and Review

Shop DLT Trading - dlt.link/2VmYv2A
Shop BHQ - shrsl.com/28zd2
Shop GPK - shrsl.com/26cwo
Shop Going Gear - shrsl.com/2k1km
My Patreon - / metalcomplex
--------‐----------------------------------------------------------
SUBSCRIBE TO KNP! - / @knifenutspodcast
Going Gear EDC Club! - shrsl.com/2k1kt
Follow me on Instagram @metal_complex
Become a Member of my channel! - / @metal_complex
Check out my merch! - www.redbubble....
--------‐----------------------------------------------------------
--MOST RECOMMENDED--
Spyderco Shaman - shrsl.com/2cx8d
Spyderco Para 3 - shrsl.com/2cx8p
Spyderco Kapara - shrsl.com/2cx8e
Benchmade Freek and Super Freek models - shrsl.com/2cx9q
Benchmade Griptilian LARGE - shrsl.com/2cxa6
Benchmade Griptilian SMALL S30V - shrsl.com/2cxae
Benchmade Crooked River large and small - shrsl.com/2cxan
ZT 0562 - shrsl.com/2cxau
Hinderer XM-18 3.5" - dlt.link/3dH1xVG
Hinderer parts and accessories - dlt.link/31scasT
Civivi Praxis - shrsl.com/2cxdf
Civivi Elementum - shrsl.com/2cxdj
Cold Steel American Lawman - shrsl.com/2cxd2
Ontario Rat 1 (LARGE) - shrsl.com/2cxdn
Ontario Rat 2 (SMALL) - shrsl.com/2cxdo
CJRB Feldspar - shrsl.com/2cxdy
--------‐----------------------------------------------------------
#METALCOMPLEX
**DISCLAIMER** This channel's content is meant for educational purposes only, and encourages the proper/safe use, handling, and understanding of tools. #everydaycarry #edc

[@jonathanwatson268]

I'm pretty sure the hole in the clip isn't for a lanyard, it's to get around the pivot screws if you decide to carry it tip down. Also, I really want the K390 Stretch 2 that's upcoming.

[@metal_complex]

Ahhh that makes sense

[@Deadtileyedie]

Same!!! I've been trying to wait on the k390 stretch 2!

[@tristanphillips8937]

I love k390, in my opinion if you don’t have edge chipping issues with what you tend to cut and if corrosion isn’t an issue where you live, k390 is the PERFECT steel. By the way I make custom knives, know way too much about steel and have had 4 different spydercos in k390. Also have made a few blades in k390, I can certainly tell you this stuff is something else

[@scottmurdock1393]

Pretty sure they used that clip with the hole in it so if someone wanted to carry it tip down it would clear the pivot hardware...

[@jarredburlington]

Im so glad you mentioned the steel liner. No one ever brings that up on the reviews the only way I was able to confirm this was reading the description off Spyderco website

[@dalelamar7371]

Finally a review of this. I pre ordered mine way back in june or july of 2020. Finally got it in early march 2021. I carry it every day but its not the edc that i use, so i can't speak about the k390. I got it mainly just because I've always loved the spyderco police. I can definitely tell it's not stainless just from flicking it open and closed all the time, the oils from my fingers. Just keep it clean and dry and rusting should never be a problem. The k390 did come razor sharp. The bevel isn't as perfectly even as my american made spydercos but it's still pretty good. This is my 3rd spyderco police. Unfortunately i missed out on the police 4 g10 k30. I really wanted that one.

[@deltafunction0]

About the hole on the clip. Even if the knife has no lanyard hole, the hole in the clip has a purpose. When set up for tip down carry, the pivot pin is accessible through the hole.

[@Hunterssoldier]

That's one of the things I like about Spyderco, they have a good selection of unique & high performance steels. I got the K390 Police 4 about a month ago when White Mountain Knives had them in stock & it's huge for sure, even longer blade than the Military & Manix 2 XL. Interesting to see how your keychain knife has held up after an entire year of usage MC.

[@johnruff7417]

I’ve owned a lot of Spyderco knives and this is one of my all time favorites!!!

[@christreadwell9545]

I think the "lanyard hole" actually has something to do with the pivot incase you wanted to carry tip down.

[@thechugdude]

I love K390 and this knife specifically. I have a Dragonfly in K390 and it has developed rust spots. I have put rust preventive lubricant on it since. If I keep in mind that I live in a hot environment and I tend to sweat a lot. So there's definitely sweat on the blade on occasion. I use them all the time and I have not had to sharpen them once. If I feel the edge going at all I just run it over the ceramic rod on my work Sharp Field sharpener and then strop it. Good as new.

[@manifestgtr]

This knife and the k390 endura are my cardboard destroyers. Due to their blade thinness and length, they eat up cardboard with machine-like efficiency. A lot is made of this knife’s size and to be honest, yes…it’s big. But it’s not egregiously huge and unnecessary. It’s *definitely* very useful and not as difficult to carry as you’d think. I liked this and the endura enough that I immediately got micarta scales on them. These knives in micarta are just about as good as it gets for spyderco backlocks. The entire series, really…the stretch is KIND OF a smaller version of this knife if you’re looking to keep the choil. The blade is even thinner, too…

[@smdursoii]

I've been carrying this version for about 5 months, and I didn't notice the lack of lanyard hole/clip until it was mentioned here.

[@theKashConnoisseur]

As far as big pocket knives go, the Police 4 is pretty modestly sized if I'm being honest. And I'd have liked to see it compared against the Delica rather than the PM series as it's more of an oversized Delica. I have it in VG10 and its the perfect EDC for me. I'm a big guy with big hands and 3 inch blades often feel diminutive while not offering a full grip on the handles. In contrast, the Police 4 looks proportional in my hands and there's more than enough handle to get a grip on. It also falls nicely within my area's knife carry laws, being under 4.75 inches and manually opening/closing. Whether I'm out hunting, at work, or walking around town, the Police 4 Lightweight is always there and reliable.

[@Javier-1982]

Gracias por tu comentario, estoy esperando me llegue uno que compre en Amazon. Cómo se comporta el police ? En el día a día ? Es frágil o aguantador. Gracias

[@theKashConnoisseur]

@@Javier-1982 I ordered mine from Amazon too. The knife is excellent, easily my favorite to carry day to day. My general uses for it are opening packages, cutting tape on boxes, and I also use it quite a bit in the kitchen to cut fruit and vegetables. In doing those daily tasks, it's the perfect tool because the long blade gives you a lot of cutting ability. It also holds an edge well, and more importantly it's easy to sharpen. It's been very durable for me, but due to the blade's shape it shouldn't be used to cut anything harder than soft wood or else it may chip. And of course doing things that no knife should do, like being stabbed into hard materials or used as a prybar. But in all normal aspects it's been very durable, very easy to clean and maintain. The K390 version does require more maintenance than the VG10 version due to the K390 steel not being stainless, but it makes up for it in having better edge retention.

[@Javier-1982]

Muchas gracias por tomar el tiempo para responder! Yo encargué la versión VG 10 también, soy de argentina tarda en llegar. Para ser sincero quería un endura pero estaba agotado, y compré el police 4 y no me arrepiento, me quedo más tranquilo ahora, saludos!!!!

[@stepheno.2730]

My all time favorite EDC is my g10 Police 4 in k390 reground to .007bte. Literally a pocket light saber. I love it.

[@Deadtileyedie]

I really want this but been holding out for the stretch 2 k390. It's super tempting though! Not sure if you have already but if not you should check out the pakkawood HAP40/SUS410 police 4. I was given one as a gift and had never heard of the steel. Man it's GREAT! Preforms as well as my natural g10 m4 940 if not BETTER! The pakkawood scales are beautiful. It usually is clipped on my tree climbing gear and hasn't needed sharping in the year or so I've had it. Yeah it definitely has a thin slicey blade that works GREAT! I definitely think you would like it. It is a little pricey for a police 4 though in my opinion. The un common premium steel makes up for it a little though.

[@daisywalker119]

Absolutely love mine. I’ve never seen this much blade in such a light, thin package. The edge retention is incredible. I’ve noticed a slight amount of surface corrosion on the blade if I fail to wipe it down at the end of the day but that’s the only downside I found so far. You will get a lot of alarmed looks if you pull it out of your pocket and open it with a Spidey drop though, (I just love doing that).

[@Zero_8347]

I love my police 3 in vg-10 and black g-10 scales, so I couldn’t resist buying this version the moment I learned of its existence

[@patrickg8744]

if i can get my hands on titanium scales and a titanium backspacer for this it will be my favorite knife by far it is incredible

[@MrTJohnston]

Great review thank you. I just one and immediately ordered a MXG gear deep carry clip.

[@LosRiji]

First things I did on my Endela w K390 is puttin a sharpening choil with a dremel cutting wheel, then polishing to 12k, patinated with ballistol nerofor, then sharpen on resinbonded 12k. Sharpen on spyderco 306UF as well! But rusts. So it doesn't beat MagnaCut

[@lonestardude6283]

I too have the ladybug in k390 as well as the police in k390 and carry them both daily! The ladybug lives in my left front pocket and the police in the right front pocket! I did change the clip to a Lynch clip! Much! Much better than the original clip! Thanks for the review!

[@bighoss7603]

Definitely gonna pick up one of these!!

[@TitsNTires]

I’m pretty sure the tip is like that so it can cut clothing off with the spine against the skin without that tip digging into the skin and cutting. If you look at the spiderco pacific salt it’s similar to that

[@carmelotansengco4605]

There is a black version with VG10 in the shop where I hang out. I'm so tempted to get it just because I'm into bigger blades but after having been able to put my Endura 4 back together, I'm having second thoughts. I think if you like a big knife. the Endura 4 is plenty big enough. I don't know. I could still change my mind. I already had three PM2s (should've been four except I sold my S110V last year) then I saw a Maxamet pop up among the latest delivery of Spydercos. I bought it. Now I'm thinking whether or not to sell my old S30V or one of my S45VNs.

[@willtrax71]

I really want a larger folder to slide onto my fishing vest and I’m liking this Police Model and the Resilience and the VG10 is a little cheaper, great review my friend. Semper Fidelis

[@thenubbynomad2828]

Never looked at one of these b4 , gotta be honest after this review I must have one 😍

[@jesseadams45]

I got one of these a few weeks ago waiting for the Straight spine stretch 2 k390. I'm surprised how well it carries being so big. Slicey as hell. My first Seki city so a little lack luster in fit and finish but for k390 and $160 I don't care because it's a user for sure.

[@dcon9708]

Have both police models, like the g10 model better bc of how it feels in my hand and it looks nicer:feels more solid and has more metal in the handle. The steel is wayyy better then kitchen knife steel, can stay very sharp a long time.

[@ryanjennings6541]

I got the man bug in V-toku2/sus410 on my jeep keys ever since it came out. Your right about the handles being super tuff. I would have gotten the K390 over the v-toku but Ive had it so long now its apart of me.

[@tonyochoa7097]

I have the vg10 model,I actually don't carry it because of it's size,but that sucker came razor sharp-I use it to slice french bread.IF I thought I would need a folder for combat,I would rock this,my crkt ritual,or microtech halo v

[@jonash5320]

thats precisely what I bought mine for: Process wood on the go. And boy, still sharp as fuck after making feathersticks in hard ass core wood of firelogs that have been dried for years. Recommendable. One thing: take a utility knife and remove the burr on the FRN. Improves the ergos A TON. Also strops back nicely on 1um polydiamond from Jende. No toy but a tool.

[@leotam3372]

The previous Police models were more police oriented, but sal has said on the spyderco forum that the 4 was more of a personal project for him as a more general use (not Law Enforcement) specific knife

[@Timmayytoo]

I am a fan of K390 but the Endela is large enough for me. I've been using a K390 Dragonfly as a daily for just around the house and I can vouch for the edge retention. I have been waiting on the wharncliffe Delica in this steel for months, which will become my daily. My Endela started a showing patina just sitting in the storage pouch and it's not particularly moist in my house so I'd say expect some level of patina unless you keep it oiled, which seems impractical for a carry blade.

[@CosmicJhana]

Fantastic review…like always. The Spyderco Police in K390, now aka the blue banana. 😂 What a great knife and steel!

[@jeremyc3977]

MC, great video once again. What is your opinion of the Kizer Wanderer? I purchased it on impulse but I think it’s excellent!

[@jeffcanyafixiy]

Friday, Payday, flickin the Griptilian & eating lunch watchin M.C!! Happiness! 👍🇺🇸👍🔪 Stay safe, stay sharp‼️

[@vemund77]

I'm thinking this would be a great barbecue knife. Anybody think so? Got a better recommendation for this use case?

[@18echo]

Exelent idea , plus the salt on the meat will give it a beautiful patina with use and time

[@Baaddu]

👍🏼 great review! This knife is no go for me because of rust issue where I live... I love M4 but I always get it coated to minimize rust issue.

[@jonr1510]

Try out some edci. I live on the coast and always avoided non stainless but edci spray has totally changed that. It's pretty amazing stuff, non toxic too

[@landrodaoud1531]

Is it possible to put a karambit ring on the handle ?

[@vancedyer755]

Got one a couple weeks ago, and it is a SE.

[@jdemeter4357]

It may be a big blade to some but I have triple x hands and feels like what a normal knife would to you. You may not believe it but it works great in taking out splinters in the hands. A needle's don't seem to work as well

[@jdemeter4357]

I also have a MXG clip

[@billyspahr808]

The Police 4 is one of the few knives I would carry tip down.

[@lewisward4359]

Would be nice to have nicer more hand friendly scales, something comfortable or cool like G-Mascus Red Lava Remove the silly clip. Great for slicing bread, roasts/salami, meat processing, and processing vegetables. taking the edge down to 17 degrees makes an even better slicer. I do EDC a Microtech SOCOM Elite, Even inNYS with strict knife laws 4" isn't a problem except certain cities - Rochester and NYC. MCDo you know anyone that does aftermarket scales?

[@18echo]

Love mine , y just cannot stand the itch from the handle fiber material , I’m starting to think I’m allergic to that stuff, same thing happened when I installed a carbon fiber free float time in my Ar .😑🤔🤷🏻‍♂️🤦🏻‍♂️

[@revolvermaster4939]

I take my K390 blades out and soak them in apple cider vinegar for several hours. Seems to resist corrosion similar to blueing and looks good.

[@Jmon808]

What does this do exactly to the k390 steel? Forced Patina?

[@markfcoble]

Just ordered the regular one... Oh boy!

[@henryg683]

I love this knife just wish it had a compression lock the spine lock isn’t my favorite thing everything else is perfect!!!!!!!!

[@quantum_beeb]

It would be better with the wire clip imo

[@gunsnrosescolin2]

Is this knife easy to flick open? Or is it in the same realm as the Endura where there's a bit of resistance?

[@stillshot2]

The heavier blade makes it more flickable imo

[@_MiMo_]

So M4 is like Chuck Norris and K390 is like Arnold?

[@Poops42069]

Please use a Spyderco Bug for size comparisons!

[@txflip29]

In your opinion is 20cv/M390 the best middle ground between edge retention and stainlessness?

[@metal_complex]

I'd throw Vanax in there too. Also the new M398. There are probably some others. M390 has excellent ratios though 👍

[@deanalbertson7203]

Since it will rust, maybe not good for a long camping trip.

[@jamesharris1493]

The Spyderco Police was the first knife I bought from Spyderco.

[@kassuk7214]

What knife do you EDC?

[@metal_complex]

A lot of stuff. Para 3, XM18, Strider .75 AR, ZT 0392, Microtech Stitch, and many others.

[@Abby_Normal_1969]

I like that it exists. Don't think it is for me. Not crazy about my Endura and the Policy and Military seem to me larger extensions of that. Waiting for the Stretch in K390 to release. I really like my Delica in K390 - probably my favorite Delica.

[@patrickg8744]

oh the endura is one of my favorites what don't you like about it

[@Abby_Normal_1969]

@@patrickg8744- fair question. I like larger knives to fill my hand fully. Feels like I have a firmer grip, especially with scales that feel solid. The Endura is just too slim for my preference, especially with the cheap, blocky feel of the FRN. The Delica is one of my favorites, but she is a light use EDC knife; I don't have to grip down on her. Not saying the Endura is bad, but my theory of use for something as large as the Endura is different then something as small as the Delica.

[@patrickg8744]

@@Abby_Normal_1969 oh sure that makes sense, i wasnt thinking and forgot to mention mine is a version wth full liners and not the FRN that most people think of. that being said i do love this police lw knife, the FRN does not feel like a cheap or flimsy material. with you though, id still go for something like the manix if needing to cut for a substantial amount of time

[@Abby_Normal_1969]

@@patrickg8744 - I am sure that I would like it better if it was G10 or something. As it is, it's on my sell list.

[@firstname3219]

Do you prefer the new frn version over the g10 version?

[@cameronbottoms1118]

Metal in most cases prefers G10. So imma say it’s G10 that’s got his preference. He’s said it in many videos it’s plenty strong; just feels cheap.

[@willtrax71]

Is it worth the extra 60 bucks to get the K390 Steel over the VG10 Version.?? I truly want to know if it is.

[@stillshot2]

I too want to know

[@markmullen1852]

Yes. Edge retention is insane with k390.

[@GreyRock100]

That's a handsome blade.

[@charliebaker1427]

They really missing out on making a nicer version of this knife, why is their damn k390 on the damn halfbaked models

[@jamesharris1493]

Although the Spyderco Police looks big when opened it's not that heavy.

[@robbiewilliamson357]

police 4 is very purpose driven

[@brokenspear6604]

Yo! I'm in Kansas too

[@SemperFi_EDC_Guy]

COMING SOON 🤩

[@tungsten_kirbide]

I want a military in k390....

[@DarkSim77]

Nothing "silly" at all about the hole in the pocket clip..its there in case you move the pocket clip to the other end of the knife..you can access the pivot screws without having to take it off..

[@MLKusername]

The real question on everyone's mind: Spyderco Police or Military?

[@samrinehart3035]

I preordered a Stretch 2 at the Knife Center. It's a way better-looking knife IMHO.

[@Ankky22]

And I thought pm2 was big...

[@MrTJohnston]

I’ve never seen a police officer carry a police 4

[@metal_complex]

I've never seen a Shaman carry a Shaman. Sometimes words are just words.

[@charliemcawesome5012]

I’ve been looking at it for a while.... just went and bought it. Yer channel sucks. Because it takes my money.

[@CNYKnifeNerd]

It's great. I'm not a backlock or FRN fan at all but I've carried mine like 80% of the time since I bought it when it was released.

[@kassuk7214]

First

[@firstname3219]

Whats up, bro?

[@stick9078]

Noo... -twitch- no lanyard hole... -twitch twitch- no hole...