What tool is used for measuring cylindrical tapers?

The Taper Ring Gage is specifically designed for measuring cylindrical tapers. It has a precise angle that corresponds to the specific taper it is intended to measure, allowing for accurate assessments of taper dimensions. This gage can be slid onto the tapered surface, and its comprehensive design ensures that it can easily confirm whether the taper is within specified tolerances.

Other tools listed, such as telescope gages, calipers, and micrometers, can measure dimensions but are not tailored to the unique requirements of taper measurements. Telescope gages are generally used for internal measurements, calipers typically measure linear dimensions and are not ideal for angles, while micrometers measure smaller dimensions but lack the specific design for taper verification. Thus, the Taper Ring Gage is the most suitable instrument for measuring cylindrical tapers accurately.