Mercer 240 Gauge 0.0001 Inch

Mercer 240 Dial Gauge 0.25 x 0.0001

Works fine.

Probe tip is a 1 mm dia x 19.7 mm pin

Mount: On the 8.0 mm stem or in an ear in the back, with a 1/4 hole

Dial diameter: 48.8 mm

Weight: 200 g