1. Introduction
The Klein Tools 3245 Round Connecting Bar is a robust hand tool designed for professional use in construction and industrial applications. Its primary functions include positioning steel members, aligning bolt holes, prying, and chiseling. Manufactured from hardened steel, this tool offers durability and extended service life. The 30-inch length and 3/4-inch diameter provide substantial leverage, while the 15-degree angled chisel end enhances its prying capabilities. A tapered end is also incorporated for precise bolt hole alignment.

Figure 1: Klein Tools 3245 Round 3/4-Inch x 30-Inch Connecting Bar. This image shows the full length of the connecting bar, highlighting its round shaft and the distinct chisel and tapered ends.
2. Safety Information
Always prioritize safety when using hand tools. Adhere to the following guidelines to prevent injury and ensure proper tool usage:
- Eye Protection: Always wear approved eye protection, such as safety glasses or goggles, to shield against flying debris or particles.
- Hand Protection: Wear appropriate work gloves to protect hands from pinches, cuts, and abrasions.
- Stable Footing: Ensure stable footing and balance before applying force to the tool.
- Inspect Tool: Before each use, inspect the connecting bar for any signs of damage, such as bends, cracks, or excessive wear. Do not use a damaged tool.
- Proper Leverage: Use the tool's length and design to your advantage for leverage, but avoid over-extending or using excessive force that could lead to loss of control.
- Intended Use: Use the connecting bar only for its intended purposes: aligning, prying, and chiseling. Do not use it as a hammer or for electrical work.
3. Components
The Klein Tools 3245 Connecting Bar consists of the following key features:
- Round Shaft: The main body of the bar, designed for comfortable gripping and strength.
- Angled Chisel End: A 15-degree angled chisel for effective prying and leverage.
- Tapered End: A pointed end designed for aligning bolt holes in structural steel.

Figure 2: Key features of the Klein Tools Connecting Bar. This image highlights the angled chisel end and the forged fit-up bar with a pointed end, emphasizing its utility for positioning steel members and aligning bolt holes.
4. Setup
The Klein Tools 3245 Connecting Bar requires no assembly. Before use, ensure the following:
- Cleanliness: Wipe down the bar to remove any grease, oil, or debris that could affect grip or performance.
- Work Area: Ensure your work area is clear of obstructions and provides adequate space for safe operation.
- Personal Protective Equipment (PPE): Always wear approved eye protection and work gloves.
5. Operating Instructions
The connecting bar is a versatile tool for several tasks:
5.1. Aligning Bolt Holes
To align bolt holes in structural steel members:
- Insert the tapered end of the connecting bar into one of the misaligned bolt holes.
- Apply gentle pressure and leverage to maneuver the steel members until the bolt holes are properly aligned.
- Once aligned, remove the bar and insert the bolt.

Figure 3: A worker using the Klein Tools connecting bar to align bolt holes in a steel beam. The tapered end of the bar is inserted into the holes to facilitate precise positioning.
5.2. Prying and Lifting
For prying or lifting objects, use the angled chisel end:
- Position the angled chisel end under the object you wish to pry or lift.
- Apply steady, controlled downward pressure on the opposite end of the bar to generate upward force on the object.
- Ensure your grip is firm and your stance is stable to prevent slippage.

Figure 4: Demonstrating the use of the connecting bar for prying. The image shows a worker applying leverage to lift a heavy steel component.

Figure 5: A close-up view of a worker using the connecting bar to gain leverage. The angled chisel end is positioned for maximum mechanical advantage.
5.3. Chiseling
While primarily for prying and aligning, the chisel end can be used for light chiseling tasks. Avoid using it for heavy-duty chiseling that could damage the tool or the workpiece.
- Position the chisel end against the material to be chiseled.
- Apply force by pushing or striking the opposite end with a suitable hammer (ensure the hammer is appropriate for striking hardened steel and wear additional eye protection).
- Exercise caution to prevent material from splintering or flying.
6. Maintenance
Proper maintenance ensures the longevity and performance of your Klein Tools Connecting Bar:
- Cleaning: After each use, wipe the bar clean of dirt, grease, and moisture.
- Storage: Store the tool in a dry environment to prevent rust.
- Corrosion Protection: The bar features a corrosion-resistant finish. However, for prolonged storage or use in humid conditions, a light coat of rust-preventative oil can be applied.
- Inspection: Regularly inspect the chisel and tapered ends for wear or damage. While designed for durability, extreme misuse can cause deformation.
7. Specifications
| Feature | Detail |
|---|---|
| Brand | KLEIN TOOLS |
| Model Number | 3245 |
| Size | 30-Inch Angled Chisel |
| Product Dimensions | 30"L x 0.75"W (76.2 cm L x 1.9 cm W) |
| Item Weight | 3.3 pounds (1.5 kg) |
| Handle Material | Alloy Steel |
| Blade Material | Carbon Steel |
| Blade Edge | Pointed (Tapered) |
| Chisel Angle | 15-Degree |
| Finish | Brushed, Corrosion-Resistant |
| Power Source | Hand Powered |
| Included Components | One 30'' Round Bar 3/4" Hex |
| UPC | 092644665059 |

Figure 6: Comparison of Klein Tools connecting bar models, showing the 3245 model with its 30-inch length. This image illustrates the different lengths and styles available, with the 3245 being a 30-inch angled chisel bar.
8. Warranty Information
Klein Tools offers a 1-year manufacturer's warranty on the 3245 Round Connecting Bar. This warranty covers defects in material and workmanship under normal use. For warranty claims or further details, please refer to the official Klein Tools website or contact their customer service department.
For more information, visit the official KLEIN TOOLS Store.
9. Customer Support
If you have any questions regarding the use, maintenance, or specifications of your Klein Tools 3245 Connecting Bar, please contact Klein Tools customer support. Contact information can typically be found on the official Klein Tools website.





