1. Producte acabatview
The Dremel 9904 Tungsten Carbide Cutter is a highly durable accessory designed for aggressive material removal, shaping, smoothing, and grinding. Its robust tungsten carbide construction makes it suitable for a wide range of hard materials.
This cutter is ideal for precision tasks such as metal engraving, glass engraving, stone carving, and efficiently removing flash from castings. It is engineered to provide consistent performance across various demanding applications.
Figure 1: The Dremel 9904 Tungsten Carbide Cutter, featuring its distinctive spiral cutting head.
Figure 2: Detailed diagram illustrating the 3/32 inch (2.4 mm) diameter and round end cylinder (ball nose) shape of the 9904 bit.
2. Configuració
Before installing the Dremel 9904 Tungsten Carbide Cutter, ensure your rotary tool is powered off and unplugged to prevent accidental activation. Safety is paramount during setup.
- Prepare the Rotary Tool: Ensure the collet nut on your rotary tool is loosened.
- Insert the Cutter: Carefully insert the 1/8-inch shank of the Dremel 9904 cutter into the collet. Ensure it is seated as deeply as possible without the flutes touching the collet.
- Estrenyeu bé: Hand-tighten the collet nut, then use the collet wrench to fully tighten it. The cutter must be held firmly to prevent slippage during operation.
- Verifica la instal·lació: Gently tug on the cutter to confirm it is securely fastened and will not come loose during use.
Always refer to your specific rotary tool's instruction manual for detailed collet and accessory installation procedures.
3. Instruccions de funcionament
The Dremel 9904 Tungsten Carbide Cutter is designed for precision work on hard materials. Proper technique and speed settings are crucial for optimal results and tool longevity.
Configuració de velocitat de 3.1
Adjust the rotary tool's speed according to the material being worked on:
- Hard Woods: Use higher speeds for efficient material removal.
- Metals (Hardened Steel, Stainless Steel, Cast Iron, Nonferrous Metals): Use slower speeds to prevent overheating and premature wear of the bit.
- Plàstics: Use very slow speeds to avoid melting the material and to ensure a clean cut.
- Fired Ceramics, Stone: Adjust speed based on material density, generally slower to medium speeds.
Experiment with scrap material to find the ideal speed for your specific application and material.
3.2 Usage Techniques
- Pressió lleugera: Apply consistent, light pressure. Excessive force can cause the bit to bind, overheat, or break.
- Moviment controlat: Maintain a steady hand and controlled movement. For intricate work, consider using a Dremel workstation or flex shaft for added stability.
- Refrigeració: For prolonged use on metals, allow the bit and workpiece to cool periodically to prevent heat buildup.
- Direcció: For optimal cutting, move the bit in a direction that allows the flutes to effectively remove material.
3.3 Precaucions de seguretat
- Protecció ocular: Utilitzeu sempre ulleres o ulleres de seguretat per protegir-vos de les deixalles que suren volant.
- Protecció respiratòria: Use a dust mask, especially when working with materials that produce fine dust (e.g., wood, stone, ceramics).
- Protecció de les mans: Wear appropriate gloves to protect hands from sharp edges and heat.
- Seguretat de la peça de treball: Secure your workpiece firmly with clamps o un torn per evitar el moviment durant el funcionament.
- Ventilació: Work in a well-ventilated area to disperse dust and fumes.
4. Manteniment
Proper maintenance extends the life of your Dremel 9904 Tungsten Carbide Cutter and ensures consistent performance.
- Neteja: After each use, clean the cutter to remove any accumulated debris or material residue. A stiff brush or compressed air can be used. Ensure the tool is disconnected from power before cleaning.
- Inspecció: Regularly inspect the cutter for signs of wear, damage, or dullness. A dull bit will require more force, generate more heat, and produce poorer results. Replace worn bits promptly.
- Emmagatzematge: Store the cutter in a dry, protected environment to prevent rust and damage to the cutting edges. Keep it in its original packaging or a dedicated accessory case.
5. Solució De Problemes
If you encounter issues while using your Dremel 9904 Tungsten Carbide Cutter, consider the following common problems and solutions:
| Problema | Causa possible | Solució |
|---|---|---|
| Bit breaks or chips easily | Excessive pressure; uncontrolled movement (bouncing); incorrect speed for material; bit is brittle by nature. | Apply lighter, consistent pressure. Ensure workpiece is secure. Use appropriate speed. Maintain stable, controlled cuts. |
| Material melting (plastics) | La velocitat és massa alta. | Reduce the rotary tool's speed significantly when working with plastics. |
| Poor cutting performance / Excessive heat | Bit is dull or worn; incorrect speed; too much pressure. | Replace the bit if dull. Adjust speed according to material. Reduce pressure. Allow bit and workpiece to cool. |
| Bit slipping in collet | Collet nut not tightened sufficiently; incorrect collet size. | Ensure collet nut is fully tightened with the wrench. Verify you are using the correct 1/8" collet for the bit's shank. |
6. Especificacions
Key technical specifications for the Dremel 9904 Tungsten Carbide Cutter:
- Número de model: 9904
- Material: Carbur de tungstè
- Tipus de gra: Extra tosc
- Número de gra: 280
- Mida: 3/32" (2.4 mm)
- Mida de la canya: 1/8"
- Estil: Round End Cylinder
- Forma: Ronda
- Pes de l'article: 0.3 unces
- Materials compatibles: Hardened Steel, Stainless Steel, Cast Iron, Nonferrous Metals, Fired Ceramics, Plastics, Hard Woods, Glass, Iron, Metal, Stone.
7. Garantia i Suport
The Dremel 9904 Tungsten Carbide Cutter is covered by a 1 any de garantia de peces i mà d'obra des de la data de compra. Aquesta garantia cobreix els defectes de materials i de mà d'obra en ús normal.
For warranty claims, technical assistance, or additional product information, please refer to the official Dremel support channels or visit the Dremel weblloc web. Conserveu el comprovant de compra per validar la garantia.
