Yost Vises 2503 User Manual

Yost Model 2503 Bench Vise, Clamp-on Style

Model 2503 Clamp-on Vise:

 Made of Gray Iron
 Two steel guide rods provide smooth screw action
 Yoke style screw clamp for mounting to bench tops ½” – 1-7/8” thick
 Replaceable / interchangeable hard plastic (nylon) jaws. Mounted on vise.
 Replaceable / interchangeable hardened steel jaws

The vise shall consist of a body with integral front and back jaws (back body with anvil
feature), a sliding front jaw body, guide rods, vise screw, harden steel jaws, hard plastic
jaws, and a sliding screw handle with a stop on each end. The back jaw and body
combination shall extend down and under (a bench / shelf) in a yoke style. A clamping
screw will extend through the bottom of the yoke and the swivel button at the top end of

the screw. A clamping screw handle (“T”, or sliding bar type) shall be provided at the

bottom end of the screw.

Vise

Item

Jaw Width

Jaw Opening

Throat

Depth

Wt. (lbs)

2503 102503 2-1/2” 3” 2-1/2” 4

Nomenclature:
2503: Yost Bench Vise, Clamp-on Style: 2-1/2” jaw width, 3” Jaw

Opening, equipped with Replaceable Hard Plastic Jaws

2503-02-HSJ: Replaceable Hardened Steel Jaws (1 Pair included)

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