При переводе инструкций с английско

При переводе инструкций с английского на русский язык у нас появился вопрос.

В инструкциях к полировальным инструментам, например, к
Amalgam_Polishing_Kit_01, All_ Ceramic_F_P_Kit и другим

В разделе «Caution»
Есть фраза:
- Do not use at an acute angle.

Нам непонятен смысл этой фразы.

Возможно, есть подробное объяснение этого пункта, рисунки?

Или, возможно, изначально это неправильный перевод на английский язык?

Результаты (английский) 1:

When translating from English into Russian instruction language we have a question.Instructions to poliroval′nym instruments, such asAmalgam_Polishing_Kit_01, Ceramic_F_P_Kit and other All_In the section «Caution»There is a phrase:-Do not use at an acute angle.We do not understand the meaning of this phrase.Perhaps there is a detailed explanation of the item pictures?Or perhaps this is the wrong originally translated into English?

Результаты (английский) 2:

When translating manuals from English into Russian we have a question. The instructions to the polishing tool, such as Amalgam_Polishing_Kit_01, All_ Ceramic_F_P_Kit and another section «Caution» There is a phrase: - Do not use at an acute angle. We do not understand the meaning of this phrase . Perhaps there is a detailed explanation of the item, drawings? Or maybe this is the wrong originally translated into English?

Результаты (английский) 3:

When the instructions from English to Russian language, we have a question.Lord in the instructions to the buffing disk tools, for example, to the
Amаlgаm_Pоlishing_Kit_01, All_ Cerаmiс_F_P_Kit and other

in section "Caution"
there is a phrase:
- Do not use at an асute angle.

We do not understand the meaning of this phrase.Lord may be, there is a detailed explanation of the item, the drawings?lord or, possibly, originally is the correct translation in the English language?