Solid steel castings, flawlessly machined and finished for years of
service. Fine-thread adjusting screws, bolt lugs for rigid mounting,
jaws grooved horizontally and vertically for round work pieces.
SPECS: #120 - 4½" (11cm) long. Jaw: 1½"
(3.8cm) wide, 1½" opening. #320 - 8" (20.3cm) long. Jaw:
3" (7.6cm) wide, 3" opening.
Catalog page 431