YOST VISES 56391 Combination Pipe Bench Vise Swivel Base Cast Iron 34C 6IN

( Brand: Yost Vises ), ( Manufacturer Part Number: 56391 ), ( Size: 6 In ), ( Throat Depth: 7.5 In ), ( Custom Bundle: No ), ( Base Type: Swivel ), ( Depth: 18 In ), ( Jaw Size: 10 In ), ( Manufacturer Warranty: 1 Year ), ( Item Height: 26 In ), ( Item Width: 12 In ), ( Color: Blue ), ( Material: Cast Iron ), ( California Prop 65 Warning: Cancer And Reproductive Harm Www.p65warnings.ca.gov ), ( Type: Bench Vise ), ( Item Weight: 165 Lbs ), ( Country Of Origin: Taiwan ), ( Minimum Pipe Capacity: 0.25 In )

Review YOST VISES Model 34c Combination Pipe And Bench Vise Swivel Base Cast Iron 6in

The **Yost Vises 56391 34C Combination Pipe Bench Vise with Swivel Base and Cast Iron 6-Inch Jaw Opening** is a robust, versatile workholding solution designed to meet the demands of professional machinists, pipefitters, and DIY enthusiasts alike. Engineered with precision and built to last, this heavy-duty vise combines the functionality of a **combination pipe vise** with the stability of a **swivel base**, making it an indispensable tool for handling a wide range of cylindrical and irregularly shaped workpieces. Its **cast iron construction** ensures exceptional durability, resisting warping and wear even under the most rigorous use, while its **6-inch jaw opening** accommodates pipes, rods, and other cylindrical components up to 6 inches in diameter, providing ample space for secure clamping without compromising grip.

The **swivel base** allows for 360-degree rotation, enabling users to position the vise at any angle for optimal access during machining, cutting, or assembly whether working on horizontal, vertical, or angled surfaces. This flexibility is particularly valuable in tight workspaces or when dealing with complex projects that require precise alignment. The **combination design** features both **pipe jaws** for gripping cylindrical objects and **flat jaws** for securing irregular shapes, making it adaptable to a variety of tasks, from welding and cutting to drilling and deburring. The **self-centering mechanism** ensures consistent clamping pressure, reducing the risk of slippage and improving accuracy, while the **adjustable throat depth** allows for deeper engagement with larger or more substantial workpieces.

Built to withstand the rigors of industrial and workshop environments, this vise is constructed from **high-quality cast iron**, a material known for its strength and resistance to thermal expansion. The **hardened steel jaws** are designed to resist deformation and provide a firm, non-slip grip on metal, plastic, and other materials, while the **heavy-duty swivel base** distributes weight evenly, preventing wobble and ensuring stability during high-force operations. The **quick-release lever** simplifies the clamping process, allowing for rapid adjustments without the need for excessive force, which is especially beneficial during repetitive tasks or when working under time constraints.

Whether mounted on a bench, worktable, or mobile cart, the **Yost Vises 56391 34C** delivers unmatched versatility and reliability, making it a standout choice for professionals who demand precision and endurance in their workholding solutions. Its **durable construction, adjustable jaws, and swivel base** combine to create a tool that not only enhances productivity but also stands as a testament to Yost s commitment to craftsmanship and performance. Ideal for workshops, fabrication shops, and field applications, this vise is a long-term investment for anyone seeking a dependable, high-performance workholding device.

The **Yost Vises 56391 34C Combination Pipe Bench Vise with Swivel Base and Cast Iron 6-Inch Jaw Opening** is a robust, heavy-duty vise designed for industrial and workshop use. Below is a detailed breakdown of its pros and cons, followed by a conclusion and recommendation.

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### **Pros**

1. **Heavy-Duty Construction**

The vise features a **cast iron base and jaws**, which are known for their durability, resistance to warping, and ability to withstand high clamping forces. Cast iron is less prone to deformation under heavy loads compared to steel or aluminum.

2. **Large Jaw Opening (6 Inches)**

The 6-inch jaw opening provides ample space for gripping large pipes, bars, or other thick materials. This makes it suitable for heavy-duty applications, including welding, machining, and general fabrication.

3. **Combination Design**

The **combination vise** (also called a "pipe vise") is designed to grip both **round and flat stock** effectively. The swivel base allows the vise to be adjusted for different angles, making it versatile for various tasks. The self-tightening mechanism ensures a secure grip without excessive effort.

4. **Swivel Base**

The swivel base allows the vise to rotate **360 degrees**, which is useful for positioning workpieces at different angles relative to the bench or work surface. This is particularly helpful when working on pipes, rods, or irregularly shaped materials.

5. **High Clamping Force**

Due to its robust construction, this vise can exert significant clamping pressure, which is essential for holding materials firmly during cutting, drilling, or welding.

6. **Compatibility with Yost s Ecosystem**

If you already own other **Yost vises or accessories**, this combination vise may integrate well with your existing setup, allowing for easier workflow transitions.

7. **Long-Term Reliability**

Yost is a well-established brand in the industrial vise market, known for producing high-quality, long-lasting tools. This vise is built to handle heavy-duty use over many years with proper maintenance.

8. **Adjustable Jaw Pads**

The jaws are likely lined with **replaceable rubber or metal pads**, which can be swapped out if worn, extending the vise s usability.

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### **Cons**

1. **Heavy Weight**

The cast iron construction makes this vise **very heavy** (likely **50 70 lbs or more**). This can make it difficult to move or install, especially if you don t have a dedicated vise position on your bench. You may need a **heavy-duty vise clamp or mounting hardware** to secure it properly.

2. **Space Requirements**

Due to its size and weight, this vise requires a **dedicated, sturdy workbench** with sufficient clearance. It may not be suitable for small workshops or portable setups.

3. **High Initial Cost**

As a premium, heavy-duty vise, the **Yost 56391 34C is expensive** compared to lighter-duty or plastic/steel alternatives. If you don t frequently use it, the cost may not be justified.

4. **Maintenance Needs**

Cast iron vises can develop **rust** if not properly maintained, especially in humid environments. You ll need to **lubricate moving parts** (swivel base, jaws) and occasionally **clean and dry** the vise to prevent corrosion.

5. **Limited Portability**

Unlike smaller or folding vises, this one is **not portable**. If you need to move it frequently, you ll need a way to securely transport it without damaging the bench or work surface.

6. **Potential for Overkill**

If your primary use involves **smaller or lighter materials**, a **smaller vise (e.g., 4-inch or 5-inch)** or a **combination vise with a lighter base** might suffice without the extra weight and cost.

7. **Installation Complexity**

Securing a heavy vise properly requires **strong bench clamps, bolts, or a vise clamp system**. Improper installation can lead to **bench damage or vise misalignment**.

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### **Conclusion**

The **Yost Vises 56391 34C Combination Pipe Bench Vise** is an **excellent choice for serious machinists, welders, and fabricators** who need a **durable, high-clamping-force vise** for heavy-duty work. Its **cast iron construction, large jaw opening, swivel base, and combination design** make it one of the most versatile and robust vises available. However, its **heaviness, cost, and space requirements** mean it is **not ideal for casual users, small workshops, or those working primarily with small materials**.

If you frequently work with **large pipes, bars, or heavy stock** and have the **bench space and budget** for a premium vise, this is a **top-tier investment**. For lighter-duty or more portable needs, a **smaller or lighter vise** may be a better fit.

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### **Recommendation**

- You work with **large pipes, thick bars, or heavy materials** regularly.

- You need a **versatile, high-clamping-force vise** for welding, machining, or fabrication.

- You have a **dedicated, sturdy workbench** that can support its weight.

- You prioritize **long-term durability and reliability** over portability or cost savings.

- You work mostly with **small or lightweight materials**.

- You need a **portable or space-saving vise**.

- Your budget is limited, and you don t frequently use heavy-duty clamping.

- Your bench is **not heavy-duty**, and you re concerned about structural damage from the vise s weight.

- **Yost 56390 34C (5-inch version)** Slightly lighter and more affordable if you don t need the full 6-inch opening.

- **Rikon 5000 Series Combination Vise** A well-regarded alternative with a swivel base and good clamping force.

- **Torin 5000 Series** Another strong option with a similar design but potentially better value.

- **Smaller vises (e.g., 4-inch combination vises)** If you don t need the extra jaw size, these are more portable and affordable.

For **heavy industrial use**, the **Yost 56391 34C is one of the best combination vises available**, but it s **not a one-size-fits-all solution**. Carefully assess your needs before purchasing to ensure it aligns with your workflow.

Details:

This utility combination pipe and bench vise has a 360-degree swivel base mounts to workbench. The pipe jaws are set back to allow for the machinists vise use. The tool is designed to help prevent pipe marring, crushing, or bending while you work on it. Hand-tightening the lock knob on base secures its position.

The 360-degree swivel base features 2 lock downs. GGG-V-410B Type The Yost Vises 34C 6-inch utility combination pipe and bench vise are made from 65,000 PSI Tensile Ductile Iron body parts. It has hardened, replaceable steel pipe jaws as well hardened flat serrated and continuous rolled thread on the main screw. This tool Conforms to Fed.

part #: 56391 prices

• $550.00-$1129.99

specifications clampvisesam:

• brand: Yost Vises
• mpn: 56391
• size: 6 In
• throat depth: 7.5 In
• custom bundle: No
• base type: Swivel
• depth: 18 In
• jaw size: 10 In
• manufacturer warranty: 1 Year
• item height: 26 In
• item width: 12 In
• color: Blue
• material: Cast Iron
• california prop 65 warning: Cancer And Reproductive Harm Www.p65warnings.ca.gov
• type: Bench Vise
• item weight: 165 Lbs
• country of origin: Taiwan
• minimum pipe capacity: 0.25 In

general clampVisesam:

• Tools Workshop Equipment > Hand Tools > Clamps Vises
• condition: Used

returns clampVisesam:

• policy: No Returns

seller clampVisesam:

• # reviews: 16
• city: Livermore, California
• rating: 100.0%

payments clampVisesam:

• wallet: Google-pay
• other
• credit card: Visa

offer clampVisesam:

• availability: In Stock
• best offers: True
• quantity: 1
• sold: 0
• started: May 31, 2026
• options: Seller-arranged-local-pickup

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