A bore gauge is a convenient term for the measuring or transfer tools that are used in the process of accurately measuring holes

The gauge has three symmetrical anvils that protrude from the gauge body that are connected to the dial or micrometer mechanism. As the knob is rotated it moves the anvils in or out with respect to the measurements

OEM for any Depth Gauge,

High Accuracy

With changeable anvils.

Order No	Range(mm)	Resolution(mm)	Depth(mm)
BG-104-100	10-18	0.01	100
BG-104-200	10-18	0.01	200
BG-104-300	10-18	0.01	300
BG-104-400	10-18	0.01	400
BG-104-500	10-18	0.01	500
BG-104-1000	10-18	0.01	1000