A.I.FORCE 3 Packs Thumb Stud for Buck 110 Folding Knife, Universal Replacement Thumb Button for Folding Hunting Knives Blade Thickness 2.5mm to 3mm, with Hex Wrench (Black, Silver, Brass)

Work great. They fit well on my buck 110. Foot was worried it would loosen up over time but have not done so yet and it’s been a couple of weeks.

They're simple & they work. A little small to fit your blade? That's what files are made for. Stripped out the stud? You don't need 40 freakin' foot/lbs of torque -- file it to fit snugly, a dab of Lok Tite and snug it down. It ain't rocket science. I turned a really nice Civivi Praxis into a great Praxis... Thumb, flipper, reverse. Fidgets like a dream and it actually looks pretty doggone good. Used 3 more on 2 beater flippers and an old, traditional ( but very nice) Al Mar, and now they're all being used instead of in the junk drawer. 2 for 8 bucks? A deal. BTW: all 4 had to be filed, which only took a couple of minutes per, and afforded a nice, snug fit to each.

The Short Story... They get it done, with a caveat. These do not fit a Gerber Gator 650. So I had to use a small file and remove material to get as good a fit as possible (see pics). You must have a fit that is not loose or just a little tight on the blade. Both of which has its own problems. After getting the fit I wanted I lightly tightened it into position as noted in the pics. I removed the locking screw and put in a couple of drops of a tuff bonding glue and re-secured the locking screw into that position. What happened fortunately worked out because the screw head stripped out just at the right time ie the attempted last turn of the wrench or I would have been Highly P***ed! Also the Thumb Stub acts as a jimping block which is nice. Also the placement I choose allows the knife to sit in it's pouch perfectly for insertion and extraction. The Long Story... The price on these are very good. Each one comes with its own Allen Wrench and is individually packed, that's great. I'd say they are made of a medium (not as good as hard nor soft) grade of metal. Which in my situation works out good, at least for now. The pictures you can view is my 1990's Gerber 650 Gator. As you can see it is a truly working knife and not a safe queen or pocket impressor (not a real word but you get it) which is why I purchased this knife. It does not have a pocket clip which I'm good with. Nor does it have a quick opening apparatus, that sucks. Hence me finally finding and getting around to buying these thumb studs. More of the Long Story... Does the blade fly out "Butter Smooth" (Har Har)? NO! But the blade is smooth with one stop point because its a lock back blade which I prefer. I do not care about the blade flying out trying to impress the masses. Did I mention this is a friggin working mans farm life knife? Well it is, what I need it to do is more important than impress others than anything else so it is razor sharp. Having the this Thumb Screw on my Gator 650 makes my life easier and more efficient. Got-Ur-Done! The Ending Of The Story... I would buy these again but you have to be careful. You may have to own some smaller files and be very careful removing the inside material. Regardless you must have some lock tight type of very good glue. And be careful in your final placement and be very careful during the final tight down. Yes I would buy again but I will update if things change.

Purchase to use on my Buck 110 to help open one handed. They are seem to be made well and very easy to add to your knife. They make opening one handed possible.

Worked great, I put a little Lock tight on there to keep the screw tight just in case.

It works, but made cheaply. The set screws will strip out the first time you tighten them

ADD THESE TO YOUR OLD BUCK 110 FOLDER AND MAKE IT A FLIPPER.

Yes I was very pleased with this product! It was just as described.

Excelente producto, buen material, viene con llave Allen de la medida. Muy práctico.