Hi, I would like to know what kind of Allen Wrench I should buy to assemble the Kettler Violet

Question edited for clarity full 'make model (what it is)'.

Here is the manual with assembly instructions and the simple tools needed, 2 screwdrivers and a M8 spanner.

https://www.manualslib.com/manual/766855/Kettler-Unix-Px.html#manual

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Buy a set, they are less than 6 bucks.

https://www.homedepot.com/p/Husky-SAE-Short-Arm-Hex-Key-Set-10-Piece-HSAHKS10PCN-06/317296195

Videos

https://www.google.com/search?q=Project+Source+kitchen+faucet+remove+handle

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No maintenance manual specifies hardware sizes - they change at the whim of assembly line workers and/or assembly line suppliers (though they do tend to remain the same throughout a model year). Do what mechanics do with hardware: buy a whole set of metric allen wrenches and keep trying until one fits.

Well, I don't have that type of toaster. What do the screws look like? If they look kind of like allen but an allen wrench will not work, they would be TORX.

If it is just replacing the handle you will only need a smaller screwdriver set (pretty common) and an allen wrench. I don't know exactly what size you need but you can get a set of these wrenches pretty cheap at any tool or hardware store. Basically the tool is a hexagonal rod that is bent in the shape of an "L". You'll need the smaller set for this job sold usually in sets that have a range of sizes from .05" to 3/8" diameter. I would guess your hex nut is 1/8" or less.

On the bottom of the handle between the sink bed and the handle you'll be able to feel a small hole. When you stick the allen wrench in there it should fit snuggly if the allen wrench wiggles a lot go to the next size up. Since the screw is facing up you will pull the other end of the wrench toward you. This will loosen the screw. It will not take a lot of effort so if you have to force it make sure the allen wrench is actually seated. Kind of a pain but you'll have to reposition the wrench as you get it loosened to fully extract the screw.

Once the screw is out the handle will drop down and the cap just pulls off. Assembly is reverse but make sure that your screw is going into the threads without resistance before tightening. This will prevent cross threading.

check the bolts or knots or I think its an allen wrench, check in the box if there is a tools it comes to it, and it should be an allen wrench. Now if you find one, simply loosen the allen wrench knot or bolt and then unfold the scooter and tight it back the bolt. ok

Tuen the stops off unsder the sink . Remove the alaen screw from the handle. Using a spanner wrinch or a needle nosed pliers spred apart unscrew the large nut that has two slots. Lift the whole assembly out. Take assembly to the plunmbign supply and match ius the kit that youy need with has two new rubber seals and two springs and maybe a new spanner nut. It also comes with the spanner wrench  and allen wrench  needed to renstall. Tip you may be able just to tighten the spanner nut(clockwise) and stop the leak w/o rebuilding it.  

The only way is with a special chuk key , and is not available to customers, if you still want to replace by yourself, you can by the whole gear case cover assemble that cames with the new chuck, but is is expensive.

Any hardware store. Allen wrenches are usually sold as sets, this way you'll have many different sizes, and one of them will surely be the one you need (just have to know whether metric or standard, or buy both sets).

Hi,
any one have a power cord/manuel for a Janome 2049 Harmony Sewing Machine?