Definition of business end in English English dictionary
The part of a tool or other similar item, that is physically used for its operation, rather than the part which is held
The business end of a hammer is known as the head.
The business end of a tool or weapon is the end of it which does the work or causes damage rather than the end that you hold. the business end of a vacuum cleaner. The part of a weapon or tool, usually at the front, that inflicts damage or performs work. the business end (of sth) the end of a tool or weapon that does the work or causes the damage