1. Introduction
This manual provides essential information for the safe and effective use of your Kinzo Hobby Knife Set. Please read it thoroughly before first use and retain it for future reference. This set includes four multi-color hobby knives designed for various cutting tasks in crafts and DIY projects.
2. Safety Information
WARNING: These knives are extremely sharp. Improper use can result in severe injury.
- Always handle knives with extreme care.
- Keep out of reach of children.
- Always cut away from your body.
- Use a cutting mat or protective surface underneath your work.
- Ensure the blade is fully retracted or covered when not in use.
- Do not apply excessive force; let the blade do the work.
- Inspect the blade for damage before each use. Replace dull or damaged blades immediately.
3. Product Overview

Figure 1: Kinzo Hobby Knife Set (4 pieces) in original packaging. The set includes knives in green, blue, yellow, and pink, each with a retractable blade and a secure locking mechanism.
The Kinzo Hobby Knife Set consists of four individual utility knives, each featuring a retractable, segmented blade. The knives are designed for precision cutting of various materials such as paper, cardboard, fabric, and thin plastics. Each knife has a durable plastic casing and a secure blade locking mechanism.
Components:
- 4 x Hobby Knives (multi-color: blue, green, violet/pink, silver/yellow)
- Retractable, segmented blades
- Blade locking mechanism
4. Setup
- Carefully remove the hobby knives from their packaging.
- Inspect each knife for any visible damage before first use.
- Familiarize yourself with the blade retraction and locking mechanism.
5. Operating Instructions
5.1 Extending the Blade:
- Hold the knife firmly with one hand.
- Locate the slider button on the top of the knife body.
- Gently push the slider button forward to extend the blade to the desired length. Only extend the necessary amount of blade for your task.
- Once extended, ensure the blade is locked in place by releasing the slider button. The mechanism should click into a groove, securing the blade.
5.2 Making a Cut:
- Place the material to be cut on a stable, protected surface (e.g., a cutting mat).
- Position the blade at the starting point of your cut.
- Apply gentle, even pressure and draw the knife along the desired cutting line. For thicker materials, multiple shallow passes are safer and more effective than one deep cut.
- Always cut away from your body and fingers.
5.3 Retracting the Blade:
- After completing your cut, push the slider button backward until the blade is fully retracted into the knife body.
- Ensure the blade is completely hidden before storing the knife.
6. Maintenance
6.1 Cleaning:
Wipe the knife body with a dry or slightly damp cloth to remove any dust or debris. Do not immerse the knife in water.
6.2 Blade Replacement (Snapping off segments):
The segmented blades allow for a fresh, sharp edge when the tip becomes dull. To snap off a segment:
- Extend the blade slightly so that one segment is exposed.
- Use the cap at the end of the knife (if present and designed for this purpose) or a pair of pliers to carefully snap off the dull segment at the score line.
- Dispose of the dull blade segment safely in a designated sharps container or wrapped securely to prevent injury.
- Note: These knives typically do not support full blade replacement, but rather snapping off dull segments. If the entire blade is used up, the knife should be replaced.
7. Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Blade does not extend/retract smoothly. | Debris in the blade channel or damaged mechanism. | Clean the blade channel. If damaged, the knife may need replacement. |
| Blade feels dull or tears material. | Blade segment is worn out. | Snap off the dull blade segment to expose a new, sharp edge. |
| Blade does not lock securely. | Locking mechanism is faulty or worn. | Discontinue use immediately and replace the knife to prevent injury. |
8. Specifications
- Brand: Kinzo
- Model Number: 49194
- Product Dimensions: 2 x 1.5 x 13 cm (approximate per knife)
- Item Weight: 9.07 g (per knife, approximate)
- Color: Multi-color (Blue, Green, Violet/Pink, Silver/Yellow)
- Quantity: 4 Pieces
- Blade Type: Retractable, Segmented
9. Warranty and Support
For questions regarding your Kinzo Hobby Knife Set, please refer to the retailer's return policy or contact Kinzo customer support. As per the product information, the item was first available on June 17, 2015. Please retain your proof of purchase for any warranty claims or support inquiries.
For general inquiries or to explore other Kinzo products, you may visit the official Kinzo store: Kinzo Store on Amazon


