Stedemon C06 flipper - with a little work, a passable EDC
Picked up a couple of these at $56.00 each including shipping from Amazon.
Opened length: approximately 8.5 "
Closed length: approximately 4.75"
Blade length approximately 3 -7/8"
Handle with: approximately .5" wide
Weight: 3.6 ounces.
Blade material: 440C
Blade finish: satin
Grip material: Black G10 (other colors available) with black carbon fiber inserts
Action: flipper, liner lock
Right pocket clip only
This picture shows the solid stainless steel liners. The stop pin is part of the blade, and you can see the liner cutouts behind the rear of the blade that the stop pin rides in.
About a 1/3 - 50% lockup, depending on how hard you flip the blade. There are no cutouts to access the liner lock, you have to wedge your thumb between the stationary liner and the liner lock to unlock the blade. Not as difficult as it sounds.
I like the kwaiken type blade design, but I feel that the Boker Kwaiken is a little too delicate in my large hands. I prefer something with a little more heft, a liner lock instead of a frame lock, and a thicker blade. I do some serious cutting with my EDC knives.
This was a bit of a project knife when it arrived. I have large hands of average strength, but I couldn't flip the blade open with either hand. I finally put the flipper tab against the edge of my workbench and pushed, and that got the blade open.
I liberally lubricated the blade, pivot, and liners with Sentry Solutions Tuff - Glide, and even after that, neither knife would open any easier. The detent hole in the blade that helps keep the knife closed was drilled too deeply, and the ceramic detent ball embedded in the liner lock would engage the detent too deeply.
I found that the small, folding sharpening stone from DMT would fit between the liners of the knife, so I chose the Medium grit one and ground down the detent ball on the liner to a nub. (I stopped and tested the force needed to open the knife every 2-3 strokes of the stone.) Finally, after about 10 - 12 passes, the detent ball would engage the hole in the blade just slightly, so I don't have to worry about the blade opening in my pocket when I clip it into my pocket.
I finished by cleaning all of the screws with rubbing alcohol, coating them with Blue Loctite, and tightening them. The female half of the pivot screw is captured, so I could tighten the pivot to the point where there is no side to side blade play without the liner lock engaged.
So, about 30 minutes of work and I have a very light, strong EDC knife that didn't break the bank.
Steel connoisseurs will criticize the use of 440C as a blade material, as it dulls a little more quickly than newer steels like D2. But is also sharpens up easily - a couple of passes on a DMT Fine grit stone and it's good to go. I've got a lot of 440C blades that have served me well over the years.