Το εργαλείο χάραξης είναι δίπλα στο σύρμα κοπής.

Στο is the normal contracted form of σε το.

Greek very often combines σε with the definite article:

• σε + το = στο
• σε + τη(ν) = στη(ν)
• σε + τον = στον

So δίπλα στο σύρμα is literally next to the wire.

Think of it as the pattern δίπλα σε + accusative, meaning next to / beside.

In this sentence:

• δίπλα = next to / beside
• στο σύρμα = to the wire / at the wire, with the meaning determined by the whole expression

So δίπλα στο σύρμα means next to the wire.

A useful thing to remember is that δίπλα often works with σε:

• δίπλα σε μένα = next to me
• δίπλα στο τραπέζι = next to the table

Because they are in the genitive singular.

The dictionary forms are:

• η χάραξη → της χάραξης
• η κοπή → της κοπής

Here the genitive is used to describe the function or type of the thing before it:

• εργαλείο χάραξης = a tool for marking / engraving / scribing
• σύρμα κοπής = a wire for cutting

English often uses noun-noun compounds, like cutting wire or engraving tool. Greek very often uses the genitive instead.

Because Greek often uses a bare genitive in technical or descriptive phrases.

So:

• εργαλείο χάραξης
• σύρμα κοπής

sound like standard descriptive compounds, similar to English marking tool or cutting wire.

If you added the article, as in της χάραξης or της κοπής, it would usually sound more specific, as if you meant of the marking process or of the cutting process in a particular context.

So the version in your sentence is the natural compact way to name the objects.

It is accusative singular, because it follows σε / στο.

The full structure is:

• δίπλα σε το σύρμα → δίπλα στο σύρμα

With neuter nouns, the nominative and accusative are often identical, so σύρμα looks the same in both cases.

That is why you do not see a different ending here.

They are:

• το εργαλείο = neuter
• η χάραξη = feminine
• το σύρμα = neuter
• η κοπή = feminine

This matters because Greek articles and some endings depend on gender and case.

For example:

• το εργαλείο
• το σύρμα
• but genitive feminine forms like χάραξης and κοπής

It is ordinary grammar, but it also feels like a very natural technical expression.

Greek commonly builds this kind of phrase as:

• main noun + genitive noun

to show purpose, type, or function.

So εργαλείο χάραξης is structurally normal Greek, not an unusual idiom. The same is true for σύρμα κοπής.

This pattern is extremely common in manuals, instructions, labels, and technical descriptions.

Yes, and that is very useful for vocabulary building.

• χάραξη is related to χαράζω = to engrave, score, mark, carve, scribe
• κοπή is related to κόβω = to cut

So if you know the verbs, the noun forms become easier to recognize:

• χαράζω → χάραξη
• κόβω → κοπή

That is a common pattern in Greek: a verb and a related action noun.

Yes, Greek word order is more flexible than English word order.

The sentence as given is the most neutral and straightforward:

• Το εργαλείο χάραξης είναι δίπλα στο σύρμα κοπής.

You could also move the location phrase forward for emphasis:

• Δίπλα στο σύρμα κοπής είναι το εργαλείο χάραξης.

That sounds more marked, as if you are highlighting where the tool is.

So the original order is the safest one for a learner to produce.

In this sentence, yes.

Greek uses the definite article very regularly, often more regularly than English does. Here the sentence is talking about specific identifiable items:

• το εργαλείο
• το σύρμα

If you removed the articles, the sentence would sound incomplete or unnatural in normal speech, unless it were some kind of label, heading, or very telegraphic note.

A simple pronunciation guide is:

To er-ga-LEE-o XA-ra-xis EE-ne DEE-pla sto SEER-ma ko-PEES

A few helpful notes:

• The stress is shown by the accent marks: εργαλείο, χάραξης, είναι, δίπλα, σύρμα, κοπής
• χ in χάραξης is not like English h. It is a rough sound, like German Bach or Scottish loch
• ει in είναι sounds like ee
• υ in σύρμα also sounds like ee in Modern Greek

So one tricky part for English speakers is usually the χ sound in χάραξης.

Because Greek usually does not build compounds in exactly the same way English does.

English often uses one noun directly before another:

• cutting wire
• engraving tool
• office chair

Greek more often uses one of these strategies instead:

• a genitive noun
• an adjective
• a prepositional phrase

In your sentence, Greek uses the genitive strategy:

• εργαλείο χάραξης
• σύρμα κοπής

So this is a very normal Greek way to express what English often expresses with noun-noun compounds.