Introduction
This manual provides comprehensive instructions for the safe and effective use of your Arrow Fastener JT21CM Chrome Finish Staple Gun Tacker. Please read this manual thoroughly before operation and retain it for future reference. The JT21CM is designed for light-duty stapling tasks, offering a reliable and efficient solution for various household and crafting projects.
Safety Information
Always prioritize safety when operating any tool. Failure to follow these safety guidelines may result in injury.
- Wear Eye Protection: Always wear safety glasses or goggles to protect your eyes from flying debris.
- Keep Hands Clear: Never place hands or fingers near the stapling mechanism or staple exit area.
- Unload When Not in Use: Always unload staples from the tacker when it is not in use or before performing any maintenance.
- Keep Away from Children: Store the staple gun in a secure location out of reach of children.
- Inspect Before Use: Before each use, inspect the tool for any damage or loose parts. Do not use a damaged tool.
- Use Correct Staples: Only use staples recommended by Arrow Fastener for the JT21CM model.
- Work Area: Ensure your work area is well-lit and free of clutter.
Product Overview
The Arrow Fastener JT21CM is a manual staple gun designed for ease of use and durability. Key features include:
- Jam-Proof Mechanism: Engineered to minimize staple jams for consistent performance.
- Contoured Handle: Provides a comfortable grip, reducing hand fatigue during extended use.
- Built-in Staple Lifter: Facilitates easy removal of incorrectly placed staples.
- Visual Refill Window: Allows for quick monitoring of staple levels, indicating when a refill is needed.

Figure 1: Front-side view of the Arrow Fastener JT21CM Chrome Finish Staple Gun Tacker. This image displays the main body, handle, and the staple exit area.

Figure 2: Side view of the Arrow Fastener JT21CM Chrome Finish Staple Gun Tacker. This perspective highlights the contoured handle and the overall ergonomic design.
Setup: Loading Staples
- Ensure Safety: Verify the staple gun is empty and the handle is not compressed.
- Open Magazine: Locate the staple magazine release latch, typically at the bottom rear of the tool. Press or pull the latch to open the staple magazine.
- Insert Staples: Place a strip of compatible staples into the magazine with the staple points facing forward (towards the front of the tool). Ensure the staples are seated correctly.
- Close Magazine: Slide the magazine cover back into place until it clicks securely. Do not force it.
- Test Fire: Point the staple gun at a scrap piece of material and test fire to ensure staples are loading and firing correctly.
Refer to the visual refill window to monitor staple levels during use.
Operating Instructions
- Prepare Workpiece: Ensure the material you are stapling is clean, dry, and properly positioned.
- Position Tacker: Place the nose of the staple gun firmly against the surface where you wish to drive a staple. Ensure it is perpendicular to the surface for best results.
- Apply Pressure: Apply firm, even downward pressure on the top of the staple gun.
- Depress Handle: Squeeze the handle firmly and completely until a staple is driven into the material.
- Release Handle: Release the handle to allow the mechanism to reset for the next staple.
- Check Staple: Verify that the staple is properly seated. If not, use the built-in staple lifter to remove it and re-staple.
For optimal performance, maintain consistent pressure and a steady hand during operation.
Maintenance
Proper maintenance ensures the longevity and reliable operation of your staple gun.
- Cleaning: Periodically wipe down the exterior of the tool with a clean, dry cloth. Do not use harsh chemicals or solvents.
- Lubrication: Lightly lubricate moving parts with a few drops of light machine oil if operation becomes stiff. Avoid over-lubrication.
- Storage: Store the staple gun in a dry, clean environment, away from extreme temperatures and humidity. Always unload staples before storage.
- Inspection: Regularly check for loose screws or worn parts. Tighten screws as needed. If any critical parts are damaged, discontinue use and contact customer support.
Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Staples not firing or jamming frequently. | Incorrect staple size; magazine empty; staples loaded incorrectly; debris in mechanism. | Ensure correct staples are used; reload magazine; check staple orientation; clear any debris. |
| Staples not fully penetrating material. | Insufficient pressure applied; material too hard for staple size; worn mechanism. | Apply more firm, even pressure; use appropriate staples for material; consider professional service if mechanism is worn. |
| Handle is stiff or difficult to operate. | Lack of lubrication; internal debris. | Apply a few drops of light machine oil to moving parts; ensure no debris is obstructing movement. |
Specifications
- Model: JT21CM
- Brand: Arrow Fastener
- Operation Mode: Manual
- Material: Plastic (with Chrome Finish)
- Product Dimensions: 1 x 7.5 x 5.5 inches
- Item Weight: 1.91 pounds
- Recommended Staples: Compatible with Arrow JT21 series staples.
Warranty and Support
Arrow Fastener products are manufactured to high-quality standards. For specific warranty information, product registration, or technical support, please refer to the official Arrow Fastener website or contact their customer service department directly. Keep your purchase receipt as proof of purchase.
Manufacturer: Arrow Fastener Company Inc
Website: www.arrowfastener.com





