Tightening nuts, bolts, and screws on the go.
Each of the nine tools on the Park Tool MT-1C Hex Keys is positioned so you don't have to dislocate your wrist just to tighten nuts, bolts, and screws that are hard to reach. The cast-steel and nickel-plated MT-1C multi-tool has five hex wrenches, three socket wrenches, and a screwdriver, and only adds 1.9 ounces to your bike pack.
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Reviews & Community
not perfect, but will save your a$$
back in the day, i carried a campagnolo T-wrench in my jersey pocket along with a 5mm hex, cause together they would be sufficient to fix most mechanical difficulties on the road. in later times, this became my go-to on-the-bike tool--bought one for the saddle bag of every bike i owned--because it could get you home in most emergency situations. BUT: it can be awkward to use in close quarters, for example, tightening a loose seatpost bolt or saddle fixing bolt. carrying a tool as minimal as this supposes that you check your bike out prior to rides and therefore only need minimal service on the road. i would still tuck one of these into the saddlebag of my bike, but i would complement it with a snap-link for whatever chain i'm running (multi-tool chain tools are a sad joke in the 11 speed world) and maybe a 5NM 4mm torque key, especially if i'm still making adjustments to a recently built-up bike.
I Like It, But Park's QC is Irregular
I like this tool.... but I've tried 4 of these and each one has irregularities in the accuracy of the hex heads. Some fit very loose, rendering them as useless as a very used hex key. Some have been so tight I can't get it to even fit in. The box wrenches seem fine. Yes, it's for emergency use only and I don't expect it to wear like a shop tool. It should be accurate from new though. I use their AWS-1 also and it's dead on snug fitting. I contacted Park about this tool and they suggested sending it to them so they can measure it's accuracy and offer me another, as the do warranty their tools for the life of it.
If you get can get a good one, it's a very useful tool to carry.
The Park Tool MT-1C is a Great Little Tool
Yeah this little guy might not have every tool under the sun, but it has most all of the basics, and could definitely get you through in a pinch. It measures about 6" in length, is ridiculously light in weight (less than 2 oz), and fits nicely in my saddlebag. Park Tool hit a homerun with this one.