Yost Vises 2-
1/2” Clamp-on Style Bench Vise,
Furnished with Hard Plastic Jaw Inserts and Hardened Steel Jaw Inserts
1. Vise, Bench, Clamp Model 2503:
Vise, Bench, Clamp shall be a stationary base clamp-style vise bench. Nominal
jaw width is 2-1/2 inches and nominal jaw opening is 3 inches. All unmachined
surfaces shall be given either one coat of enamel or lacquer. In no case shall
fillers be used. All castings shall be of uniform quality, free of blowholes, porosity,
hard spots, shrinkage defects, cracks, or other injurious defects.
Figure 1: Standard Order:
Yost Model 2503: Shown with hard plastic
jaws mounted to vise, (1) pair of hardened
steel jaws included with each order.
Figure 2:
Yost Model 2503: Shown with hard steel
jaws mounted to vise, (1) pair of hard plastic
(nylon) jaws included with each order.
2. The vise shall consist of a body with back jaw, front jaw, vise screw, screw
handle, and bench-clamping screw. The vise shall be provided with guide rods.
The body shall be of cast iron, ductile iron, malleable iron, steel casting, or steel
forgings.
3. The bench clamping screw shall be of a commercial steel screw stock with either
a knob wing “T” or sliding bar handle. The clamping screw shall be capable of
permitting the vise to be securely tightened to bench tops which vary in thickness
from ½ to 1-7/8 inch in thickness.
4. The front jaw, except for jaw facings where specified, shall be of cast iron, ductile
iron, malleable iron, steel casting, or steel forgings. When front jaws and sliding
members are furnished, the sliding member shall conform to the requirements of
