Mitutoyo 050084 10 Depth Gauge for Vernier Caliper, 100 mm

Amazon

For all Digimatic callipers, watch calipers and analogue calipers with depth gauge and measuring range 150, 200, 300 mm Safety clamp Very finely ground surface

Radwell UK

CALIPER BASE: 1 PC, USE WITH CALIPERS WITH A DEPTH BAR, INCLUDES DEPTH ROD050084-10