Which of the following is a part of Black’s classification of hand instruments?
Black among his many contributions to modern dentistry, is credited with the first acceptable nomenclature for and classification of hand instruments.
His classification system enabled both dentists and manufacturers to communicate more clearly and effectively in regard to instrument design and function.

Hand instruments used in the dental operatory may be categorized as:

Cutting (excavators, chisels and others).
Noncutting (amalgam condensers, mirrors, explorers, probes).

Ref: Sturdevant's art and science of operative dentistry. 4th edition page 310
Exploratory instruments
Non cutting instruments
Restoration instruments
Instruments to remove tooth structure