Otočte špíz grilovacími kleštěmi.

Yes. Otočte is the imperative form of otočit (to turn / to flip).

In this sentence, it means Turn! / Flip!

This form can be used:

• for more than one person: you all turn
• or as a polite singular: you, sir/ma’am, turn

So in instructions, recipes, and signs, otočte is very common because Czech often uses the polite/plural imperative for neutral instructions.

Compare:

• otoč = informal singular (turn! to one friend)
• otočte = polite singular or plural (turn!)

This is about aspect.

• otočit is perfective
• otáčet is imperfective

Otočte suggests one complete action: turn it over, flip it once, make the movement successfully.

That fits very naturally in cooking instructions.

By contrast, otáčejte would sound more like:

• keep turning
• turn repeatedly
• turn it from time to time

So here otočte is the normal choice for a single completed instruction.

Because špíz is the direct object of the verb, and here it is in the accusative singular.

For masculine inanimate nouns like špíz, the accusative singular is usually the same as the nominative singular.

So:

• nominative: špíz
• accusative: špíz

That is why it looks unchanged.

Because it is in the instrumental case, which is often used to show the tool or means by which an action is done.

So:

• Otočte špíz = turn the skewer
• grilovacími kleštěmi = with grilling tongs

In Czech, you often do not need a separate word like with here. The case ending itself expresses that idea.

So grilovacími kleštěmi literally means something like:

• using grilling tongs
• by means of grilling tongs

Because the adjective has to agree with the noun.

Here:

• kleštěmi = instrumental plural
• therefore the adjective grilovacími must also be instrumental plural

So the two words match in:

• case: instrumental
• number: plural
• gender: whatever the noun requires grammatically

That is why you get:

• grilovací kleště = grilling tongs
• grilovacími kleštěmi = with grilling tongs

Yes, kleště is normally a plural-only noun in Czech, much like some English nouns that are naturally treated as plural, such as scissors or tongs.

So you usually see forms like:

• kleště = tongs / pliers
• kleštěmi = with tongs / with pliers

Czech treats this object as grammatically plural, even when it refers to one physical tool.

No. In this sentence, no preposition is needed.

Czech uses the instrumental without a preposition to show the instrument used to perform an action.

So:

• Otočte špíz grilovacími kleštěmi. = Turn the skewer with grilling tongs.

If you used s, that would usually mean with in the sense of together with or accompanied by, not the tool you use in the action.

So the version without s is the correct one here.

The dictionary forms are:

• grilovací = grilling / barbecue
• kleště = tongs / pliers

Together, the base phrase is:

• grilovací kleště = grilling tongs

In the sentence, this phrase changes to instrumental plural:

• grilovacími kleštěmi

Yes. Czech word order is more flexible than English word order.

The sentence:

• Otočte špíz grilovacími kleštěmi.

is a natural, neutral instruction.

But other orders are possible, for example:

• Špíz otočte grilovacími kleštěmi.
• Grilovacími kleštěmi otočte špíz.

These alternatives can sound more marked, with a different emphasis:

• starting with špíz puts focus on the thing being turned
• starting with grilovacími kleštěmi emphasizes the tool

So the original version is a straightforward instructional order.

You would usually say:

• Otoč špíz grilovacími kleštěmi.

The only change is the imperative:

• otočte → polite singular / plural
• otoč → informal singular

Everything else stays the same.

A rough pronunciation guide is:

• otočte ≈ OH-tohch-teh
• špíz ≈ shpeez

A few useful sound notes:

• š sounds like sh
• č sounds like ch in church
• í is a long ee
• ž would sound like the s in measure, though it does not appear in this sentence

So the whole sentence is roughly:

OH-tohch-teh shpeez gree-loh-VAH-tsee-mee KLESH-teh-mee

That is only an approximation, but it can help at first.