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Hey RUK Purchasers,
We got to handle some samples from the production run of the copper and brass RUK that are about to ship and in general they are exactly what we were shooting for.
For those of you who ordered copper, I want to prepare you for a reality of that special material and hopefully head off any questions: The copper RUKs need a short break-in period. This won't take very long - we are seeing about 200-300 open/close cycles before the wear paths smooth out and feel as buttery smooth as the brass versions.
This is because copper is the softest material that passed our initial test and we had to account for some dimensional changes due to wear. So, out of the box if you press directly down on the top of the button (toward the back scale), you can flex the material enough to get some galling, but if you keep at it (I broke one in while on a 30-minute conference call with Jonas and Mike), it will smooth out and stay that way.
Also, there will be a temptation to put lubricant in there, but don't do it! The RUK is designed to be carried in a bag or pocket, where lubricant will only serve to collect grit and gum up the internal mechanisms. Let the copper wear in correctly to account for the material deflection.  That way the knife sorts itself out and won't need any further attention. Thank you and carry on, Elliot
mike.j
300
Sep 28, 2018
FerrumForgeKnifeWorksI wanted to add on to this that the copper RUK I have with me today has also broken in quickly and nicely. My copper RUK took less than 150 cycles to break in. I also tied on the lanyard bead with three 2 strand wall knots forward and aft for people to check out, including @abtplunder. I cant wait for a patina on this knife and I'm sure you all will love these. I find it to be one of my most used knives in terms of convenience and utility which saves me from having to whip out the big guns like my CKF Satori.
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I can't wait for you guys to get your hands on these!
abtplunder
31
Sep 29, 2018
mike.jThanks for the photo, can’t wait to get mine! You did a great job on these!
FerrumForgeKnifeWorksThe Massdrop Crew sent us more samples of the copper and brass RUKs to inspect and in this larger sample we found the amount of galling much less than in the first RUKs they initially sent us. Of this larger batch only one had any noticable "stickiness" and that smoothed out in minutes of playing with it while I was checking my morning emails.
Be careful, these little buggers are addictive and if you are anything like me, you are definitely going to annoy your coworkers with the constant clicking. Chris has banned me from touching a RUK when he is in the office with me unless it is to open mail and packages, which now I only do when he is in the office just so he can enjoy satisfying snap of the RUK retracting. I'm a cool older brother like that.
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