Dremel 655 Keyhole Router Bit Instruction Manual

Introduction

The Dremel 655 Keyhole Router Bit is designed for creating keyhole slots in wood and other soft materials. These slots allow for easy hanging of items on screws or nails, providing a secure and flush mount. This bit is made from high-speed steel, ensuring durability and efficient cutting performance when used with compatible Dremel rotary tools and router attachments.

Image: The Dremel 655 Keyhole Router Bit, a cylindrical metal bit with a T-shaped cutting head at the top and a 3.2mm shank.

Safety Information

Always prioritize safety when operating power tools. Read and understand the instruction manual for your Dremel rotary tool and any attachments before use. Wear appropriate personal protective equipment (PPE), including safety glasses, hearing protection, and gloves. Ensure your workpiece is securely clamped. Disconnect the tool from the power source before changing accessories or performing maintenance.

• Always wear eye protection.
• Ensure the bit is securely inserted and tightened in the collet.
• Do not force the tool; let the bit do the work.
• Keep hands and loose clothing away from rotating parts.
• Work in a well-ventilated area.

Setup

The Dremel 655 Keyhole Router Bit is designed for use with Dremel rotary tools and specific router attachments to ensure proper depth and control for keyhole routing.

Compatible Tools and Attachments:

• Dremel Rotary Tools: Compatible with all Dremel rotary tools, including models such as the Dremel 4000, Dremel 8200, and Dremel 300 series.
• Dremel Router Attachments: For optimal performance and control, use with Dremel Router Attachments #230 and #330.
• Dremel Shaper/Router Table: Can also be used with the Dremel #231 Shaper/Router Table for precise, repeatable cuts.

Image: A diagram illustrating the 3.2mm shaft size of the router bit and listing compatible Dremel tool series: 4000, 8200, and 300 series.

Installation Steps:

1. Ensure your Dremel rotary tool is unplugged.
2. Unscrew the collet nut and remove the existing collet if necessary.
3. Insert the correct size collet (3.2mm or 1/8 inch) for the 655 Keyhole Router Bit.
4. Insert the shank of the 655 bit into the collet, ensuring it is fully seated.
5. Tighten the collet nut firmly with the collet wrench, but do not overtighten.
6. Attach the Dremel Router Attachment (#230 or #330) or mount the tool to the #231 Shaper/Router Table, following the attachment's specific instructions.
7. Adjust the depth setting on the router attachment to achieve the desired keyhole depth.

Operating Instructions

The Dremel 655 Keyhole Router Bit is ideal for routing, inlaying, and mortising in various soft materials.

Suitable Materials:

• Wood (soft and hard)
• Acrylic Resin (Plexi)

Image: A Dremel rotary tool mounted in a router attachment, with a piece of wood being routed. This illustrates a typical setup for using the router bit.

Keyhole Routing Technique:

1. Prepare Workpiece: Securely clamp your workpiece to a stable surface. Mark the desired location for the keyhole slot.
2. Set Depth: Adjust the router attachment to the desired depth for the keyhole. The wider part of the keyhole should be deep enough to accommodate the screw head, while the narrower slot should be deep enough for the screw shank.
3. Start Cut: With the Dremel tool running at an appropriate speed (refer to your tool's manual for recommended speeds for routing), plunge the bit into the material at the wider, circular end of where the keyhole will be.
4. Route Slot: Once plunged, slowly move the tool along the marked line to create the narrower slot of the keyhole. Maintain steady pressure and a consistent feed rate.
5. Finish Cut: Once the desired length of the slot is achieved, carefully lift the tool out of the material.
6. Test Fit: Test the keyhole with the intended screw or nail to ensure a proper fit.

Image: A cross-section diagram showing a keyhole slot routed into a block of wood, illustrating the wider circular entry point and the narrower slot for the screw shank.

Maintenance

Proper maintenance extends the life of your Dremel 655 Keyhole Router Bit and ensures consistent performance.

• Cleaning: After each use, clean the bit to remove any accumulated dust, resin, or debris. A stiff brush or compressed air can be used. Avoid using harsh chemicals that may damage the bit.
• Inspection: Regularly inspect the cutting edges for signs of wear, dullness, or damage. A dull bit will produce poor cuts and can overheat.
• Storage: Store the bit in its original packaging or a protective case to prevent damage to the cutting edges and to keep it free from rust. Store in a dry environment.
• Sharpening: Router bits can be professionally sharpened, though for small bits like this, replacement is often more practical if significant dullness occurs.

Troubleshooting

If you encounter issues while using your Dremel 655 Keyhole Router Bit, consider the following common problems and solutions:

Specifications

Warranty and Support

For information regarding product warranty, technical support, or service, please refer to the official Dremel website or contact Dremel customer service directly. Keep your purchase receipt as proof of purchase.

Dremel Official Website: www.dremel.com