Photo Index - G. M. Yost Manufacturing Co. - Yost 31C Combination Pipe Vise

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Manufactured/Badged by:
G. M. Yost Manufacturing Co.
Mechanicsburg, PA; Meadville, PA; Cambridge Springs, PA;Muskegon, MI; Holland, MI

Machine Specifications
Machine Class:	Metal Working Machinery
Machine Type:	Other
Machine Size:	3.5 inch wide jaws
Submitted By:	Curtis Garrett

Machine Specifications
Description/Model:	Yost 31C Combination Pipe Vise
Date of Manufacturer:	1980 Aprox.
Serial Number:	None
Last Updated	7/13/2026 11:37:07 AM

Comments:

This vise is in daily use at the United State Postal Service processing plant in downtown Springfield Missouri where I work also.
This Yost vise is in all original condition and still in daily use.
The vise side casting is marked "Holland, MI USA" which dates it to 1980 or later when Yost Manufacturing Co. set up their foundry operations in Holland Michigan.

Specifications:
Jaw Width 3.5 inches
Pipe Capacity 1/8 to 2.5 inches
Jaw Opening 4 inches
Throat Dept 4.5 inches
Weight 40 pounds

Photo 1:

Comments: Yost 31C right side view
Source: C. Garrett Samsung A-12

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Photo 2:

Comments: Yost 33C left side view
Source: C. Garrett Samsung A-12

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Photo 3:

Comments: Yost Combination Pipe Vise Specs.
Source: Internet photo

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