No. 74,
75, 77 Series
"Fay" Spring-Type
Calipers and Dividers with heavy square legs and quick-spring or solid
nut
Nos. 74, 75, 77 Series
6" (150 mm)
Starrett "Fay" Calipers and Dividers
feature exceptionally rugged construction. The legs are made from heavy
square stock, machined to a smooth taper. The fulcrum stud is hardened
and has a large bearing surface to prevent side deflection of the legs.
The bow spring is both strong and flexible, and the adjustment screw is
centrally located in the legs to assure smooth action. Furnished in either
spring nut or solid nut models.
The Starrett quick-adjusting automatic-closing
spring nut is designed for making quick, positive adjustments. The threads
of the nut firmly engage the screw at the slightest pressure from the
leg. When the pressure is withdrawn, the nut automatically releases itself,
sliding freely over the screw.
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