K390 Police 4 LW SE

[VooDooChild]

DLT says in stock and ready to ship.

[Evil D]

Code knives21 at G&R makes this an incredible temptation at 30% off…

I almost ordered a second one

[Airlsee]

Code knives21 at G&R makes this an incredible temptation at 30% off…

It's still a great deal but, it is 20% off, not 30%...+ $9.80 shipping...

[JakeXman]

Code knives21 at G&R makes this an incredible temptation at 30% off…

It's still a great deal but, it is 20% off, not 30%...+ $9.80 shipping...

My bad—thanks for that mate!

[Evil D]

Judging by the pics RamZar just posted in his "delivered" thread, I'm gonna take a guess that they had to run the blade grind on these thinner than most in order to be able to grind the serrations into K390. Otherwise there may have just been a deliberate choice to make it thinner, or maybe the serrations are ground at a super high angle because they look really short compared to pretty much every other SE grind I've seen. I hope they're at least ground at or below 15 degrees, I'm not looking forward to having to reprofile this one

[RamZar]

Pictures of Police4 Lightweight SpyderEdge K390 Blue FRN C07FS4K390 courtesy of KnifeWorks.

[Airlsee]

You know you have a problem, when you instinctively recognize knife dealers' in-house pictures...but for all the others...

[Buddafucco]

KnifeJoy... https://www.knifejoy.com/products/spyde ... rated-edge

[skeeg11]

Judging by the pics RamZar just posted in his "delivered" thread, I'm gonna take a guess that they had to run the blade grind on these thinner than most in order to be able to grind the serrations into K390. Otherwise there may have just been a deliberate choice to make it thinner, or maybe the serrations are ground at a super high angle because they look really short compared to pretty much every other SE grind I've seen. I hope they're at least ground at or below 15 degrees, I'm not looking forward to having to reprofile this one

IIRC you alluded to the fact that the apparent height of the serrations is dependent upon the acuteness of the primary grind or bevel. Let's hope this a case where K390 allows them to take the primary grind or bevel to a very acute degree. Very curious as to TBE.

[Evil D]

Judging by the pics RamZar just posted in his "delivered" thread, I'm gonna take a guess that they had to run the blade grind on these thinner than most in order to be able to grind the serrations into K390. Otherwise there may have just been a deliberate choice to make it thinner, or maybe the serrations are ground at a super high angle because they look really short compared to pretty much every other SE grind I've seen. I hope they're at least ground at or below 15 degrees, I'm not looking forward to having to reprofile this one

IIRC you alluded to the fact that the apparent height of the serrations is dependent upon the acuteness of the primary grind or bevel. Let's hope this a case where K390 allows them to take the primary grind or bevel to a very acute degree. Very curious as to TBE.

Well that plus the angle of the serrations grind itself. If the angle is ground steep even in a very thin blade you'll get very short height scallops. If the serrations are all ground at 15 degrees you'd see them look shorter on a thin primary grind than a thick one. You see the same thing with plain edge bevels too, and every time I see a new model come out that looks like it has a tiny little edge bevel I always wonder which it's going to be, thin blade grind or steep bevel angle.

I'll be sure to get out my calipers first thing before I start the reprofiling madness.

[skeeg11]

Judging by the pics RamZar just posted in his "delivered" thread, I'm gonna take a guess that they had to run the blade grind on these thinner than most in order to be able to grind the serrations into K390. Otherwise there may have just been a deliberate choice to make it thinner, or maybe the serrations are ground at a super high angle because they look really short compared to pretty much every other SE grind I've seen. I hope they're at least ground at or below 15 degrees, I'm not looking forward to having to reprofile this one

IIRC you alluded to the fact that the apparent height of the serrations is dependent upon the acuteness of the primary grind or bevel. Let's hope this a case where K390 allows them to take the primary grind or bevel to a very acute degree. Very curious as to TBE.

Well that plus the angle of the serrations grind itself. If the angle is ground steep even in a very thin blade you'll get very short height scallops. If the serrations are all ground at 15 degrees you'd see them look shorter on a thin primary grind than a thick one. You see the same thing with plain edge bevels too, and every time I see a new model come out that looks like it has a tiny little edge bevel I always wonder which it's going to be, thin blade grind or steep bevel angle.

I'll be sure to get out my calipers first thing before I start the reprofiling madness.

Look forward to your TBE measurements above the large scallops tip, middle and in front of the choil.

[ABX2011]

Most likely the serrations are just ground at a steeper angle than usual.

[Pokey]

When I saw this knife in person I thought the scallops weren’t as tall, and the teeth weren’t as toothy. But then I thought maybe it’s because I’m not used to such a long SE blade.

[Tgmr05]

Well, seems quite popular. Already oos everywhere mentioned in this thread.

[Tgmr05]

Found one still in stock at Knifejoy

[kobold]

Old Police

New P4

I like the new one more. Well done!

[Evil D]

Most likely the serrations are just ground at a steeper angle than usual.

Man I really hope that's not the case, I'm not looking forward to even casual reprofiling on this one. H1/LC/VG10 are already generally regarded as being easy enough to grind and even those are a PITA once you get really close to reaching the apex and a steel like K390 is going to really test your patience and commitment lol.


I think Sal even said something along the lines of doing it in small sessions as he does regular sharpening and I think that's how I'll likely do it too. One thing I definitely don't recommend is getting lazy and using the 40 degree slots on this one because if you do start to develop a 20 degree bevel, it'll take you an eternity to thin it back out to 15. I'm dealing with this on a few of my knives right now and I really regret getting lazy and "micro beveling" my serrations because it actually creates that situation where you're so close to reprofiling and reaching the apex but it takes 1000s of strokes to get there.

[Evil D]

Well mine is due to arrive by Saturday according to USPS. I'm hoping for Friday.

[Leksy]

I'm pretty happy with PE right now, although very interested in your review on serrated K390, Evil D.

[Buddafucco]

House of Blades... https://houseofblades.com/shop/spyderco ... -blue-frn/