Lockback rock

[RugerNurse]

I recently purchased the salt 2 Spyderco. When I was cutting some meat on a cutting board if I pushed down I could feel a bit of rock pushing back on the lock. In hand I can slightly move it. Is this a concern? My other lockbacks from Spyderco have been solid.

 

[sharp_edge]

Not a concern to me. Most Spyderco lockback folders with FRN scales have a tiny bit up and down blade play when pushed.

 

[mmyron1]

All of my Spyderco back locks have movement when pushed hard enough. Even my original Manix. All my Natives and Delicas had some as well. If you look close enough you can see the lock bar move with it.

 

[DavidABQ]

I have experienced this with an older Spyderco Delica but my Lil’ Native is rock solid without any vertical movement. Perhaps it is because of how small the blade is?

 

[Wandering_About]

Seki City spydies are rather infamous for their rock lock. Not really a concern other than it feels bad.

 

[Ajack60]

No, it's not a concern.

 

[jbmonkey]

Seki City spydies are rather infamous for their rock lock. Not really a concern other than it feels bad.

true, but even some American made ones like the Chief can have some minor blade play. I have one that does. it's harmless though on function....just would annoy someone who's ocd on it.

 

[dogstar]

Lock rock is inherent to the back lock. Tri-ad lock addresses this issue by letting parts slide and adjust for wear. I would wait until Cold Steel's patent expires and the design proliferates. No need to support GSM, the current owners of CS.

 

[GB940Rookie]

All my Spydie lock backs have it.

 

[RugerNurse]

Thanks all. I don’t intent too abuse the knife. Just didn’t want it to do something bad and hurt myself. My native 5 locks up very well. I’ve had good luck with the USA Spydercos lately, from blade grinds to fit and finish.

 

[Ajack60]

Thanks all. I don’t intent too abuse the knife. Just didn’t want it to do something bad and hurt myself. My native 5 locks up very well. I’ve had good luck with the USA Spydercos lately, from blade grinds to fit and finish.

Out of curiosity, was the meat frozen that made the knife flex ??
On the rare occasion that I'll use a folding knife in the kitchen, I've never cut anything that makes me take a second look at the knife I'm using.

 

[RugerNurse]

Out of curiosity, was the meat frozen that made the knife flex ??
On the rare occasion that I'll use a folding knife in the kitchen, I've never cut anything that makes me take a second look at the knife I'm using.

It was cooked. As I finished pushing down through the cut I could feel it rock a bit

 

[Ajack60]

This would be better suited.

 

[RugerNurse]

Smith and Sons makes nice knives for sure.

 

[brownshoe]

per Spyderco lock rock in mid-lock knives is “within tolerances”. However I have several Spyderco lock backs purchased over 20 years & none have lock rock.

 

[Another Shepherd]

I got out a couple Enduras and a Pacific Salt and tried to push cut a 2x4. Yes, there is a little rock, but only when I push harder than I have ever needed to for kitchen tasks. I can barely feel the lock bar rising. I don't think I would have ever noticed if I had not been checking specifically for rock.

 

[avoidspam]

Taichung made Spyderco's like the Chaparral don't because they have an internal stop pin. When the nub of the lockbar drops into the well of the blade tang it is held by the resistance of the internal stop pin. The only disadvantage I can see is that, by it's design there has to be a means of wear to keep everything tight. As the nub wears the lockbar drops slightly lower than the frame in use and you lose the flush finish.