Description The Park Tool Multi-Tool MTC-30 is a handy multi-tool including Torx wrenches as well as Hex’s, box wrenches & screwdriver. If you were looking for a multi-tool to keep on your bike, this one is handy in a pinch. Especially if you find yourself needing to adjust your hydro brake calipers. Including a couple of the most useful size Torx wrenches, this is a good all-rounder multi-tool. The Hex keys on this multi-tool will fit most of the bolts on your bike like headset, bidon, & seatpost. Then there is the screwdriver for derailleur adjustments. And the box wrenches will allow you to adjust your axle nut if you have a nutted axle. This one is particularly important if you ride a 90s mountain bike with a nutted axle & need to change a tube! The 15mm box wrench will get you out of a tight spot with your bike rack, or any other accessories. And you will be able to use it on brake components, pinch bolts & pedal studs if yours come loose. As with all Park Tool gear this one is made of tough stuff, and the multi-tool body gives you a good hand-hold when using the tools. Throwing this one in your saddle bag will not only get you out of trouble, you’ll be able to help other cyclists too! Park Tool Multi-Tool MTC-30 specs Includes: 2.5, 3, 4, 5, 6 and 8 mm hex wrenches T25 & T30 Torx®-compatible drivers Combo cross/straight tip screwdriver 8 and 15 mm box wrenches Key ring holder Dimensions: 72 x 42 x 22 mm Weight: 131 grams