45650 Amana Tool Carbide Tipped 3/8" Keyhole Bit
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Amana Tool 45650 Carbide Tipped 3/8" Keyhole Bit
The Amana Tool 45650 3/8" Keyhole Bit is a simple but extremely useful router bit for creating clean, hidden hanging slots on the back of woodworking projects. If you make picture frames, plaques, signs, wall art, name boards, display pieces, or other wall-mounted projects, a keyhole router bit gives you a cleaner way to hang the finished piece without visible hardware on the front.
We use this bit for adding keyhole slots in picture frames, plaques, and other wall hangings. The recessed slot allows the project to hang from a screw or fastener while keeping the mounting method hidden and helping the piece sit closer to the wall.
What This Router Bit Is Used For
This keyhole router bit is designed for cutting recessed hanging slots into the back of wood projects. It is a practical bit for woodworkers, sign makers, furniture builders, and small shops that make pieces intended to hang on a wall.
- Picture frames
- Wood plaques
- Custom signs
- Wall art and decorative panels
- Name boards and nursery signs
- Display pieces and award boards
- Other wall-mounted woodworking projects
Why We Like This Bit
A keyhole slot is one of the cleanest ways to hang a wall-mounted woodworking project. Instead of adding exposed brackets or surface-mounted hardware, the slot is routed into the back of the piece so the finished project can hang neatly from a screw head.
- Hidden hanging method: Creates a recessed slot on the back of the project.
- Cleaner finished look: Helps keep mounting hardware hidden from the front view.
- Great for signs and plaques: A practical choice for small shops making wall-mounted products.
- Flush wall fit: Helps the finished project sit closer to the wall than many surface-mounted hanging methods.
- Carbide-tipped design: Built for durability and dependable cutting performance.
- Useful shop bit: A handy bit to keep around if you make frames, signs, plaques, or wall décor.
Recommended Products to Use With This Keyhole Bit
For best results, pair this keyhole bit with the right wood, layout tools, and finishing products for your project:
- Dimensional Wood - A great option for signs, plaques, display boards, wall art, and other flat woodworking projects.
- Template Tape - Useful for holding layout guides or acrylic templates in place during related template-routing projects.
- Acrylic Woodworking Templates - Great for creating repeatable signs, letters, numbers, plaques, and wall-mounted projects.
- Universal Router Base Plate - Helpful for extra router stability and visibility on larger routing projects.
- Grand Finishing Hardwax Oil - A great finish choice for signs, plaques, wall art, frames, and display pieces.
How to Use a Keyhole Router Bit
A keyhole bit cuts a slot that allows the project to hang from a screw or fastener head. The wider part of the routed slot gives the screw head room to enter, while the narrower part helps hold the project in place once it is lowered onto the screw.
- Mark the location for the keyhole slot on the back of your project.
- Make sure the project is flat, stable, and securely held before routing.
- Install the keyhole bit securely in a router that accepts 1/4" shank bits.
- Set the routing depth based on your project thickness and the screw or fastener you plan to use.
- Plunge into the starting point of the slot carefully.
- Move the router in a controlled straight line to create the slot.
- Back the router out carefully and test the fit with the screw or fastener before final installation.
Always test your setup on scrap wood first. Keyhole slots depend on the thickness of the workpiece, the screw size, and the depth of cut, so testing helps confirm the slot fits your hardware properly before routing your finished piece.
Watch: Choosing Router Bits for Woodworking Projects
Watch this video for a closer look at router bit selection and how different router bits are used in woodworking projects.
Specifications
- Brand: Amana Tool
- Model: 45650
- Bit Type: Carbide Tipped Keyhole Router Bit
- Diameter: 3/8"
- D1: 13/64"
- Cutting Height: 3/8"
- B1: 3/16"
- Shank: 1/4"
- Overall Length: 1-37/64"
- Flutes: 1
What's Included
- One Amana Tool 45650 Carbide Tipped 3/8" Keyhole Bit
Helpful Router Template Guides
New to router bits or template routing? These guides can help you choose the right bit, understand router bit setup, and plan your woodworking projects more confidently:
Frequently Asked Questions
What is a keyhole router bit used for?
A keyhole router bit is used to cut a recessed slot in the back of a project so it can hang on a screw or fastener. It creates a clean, hidden mounting option for wall-hung woodworking projects.
What projects is this bit best for?
This bit is great for picture frames, plaques, signs, decorative wall art, name boards, nursery signs, and other wall-mounted woodworking projects.
Why use a keyhole slot instead of standard hanging hardware?
A keyhole slot keeps the hanging method hidden and allows the piece to sit closer to the wall, giving the finished project a cleaner and more professional appearance.
Can I use this bit in a standard router?
Yes. This bit has a 1/4" shank, so it is designed for routers that accept 1/4" shank router bits.
Is this bit carbide tipped?
Yes. This is a carbide-tipped router bit, which helps provide longer life and dependable cutting performance.
Can this bit be used for signs and plaques?
Yes. This is one of the most common uses for a keyhole bit. It works very well for signs, plaques, and other projects that need to be mounted neatly on a wall.
Does this help the project hang flat?
Yes. One of the main benefits of a keyhole slot is that it allows the workpiece to sit closer and flatter against the wall than many surface-mounted hanging methods.
Should I test the cut before using it on a finished project?
Yes. Always test the keyhole slot on scrap wood first to confirm the depth, screw fit, and hanging direction before routing the back of your finished project.
What should I consider before routing a keyhole slot?
Make sure your project is thick enough for the slot, choose the right screw or fastener, and confirm the slot direction before routing. The piece should hang securely without weakening the back of the project.
Can I use this for market products?
Yes. If you make signs, wall art, plaques, kids room décor, or custom wood gifts for local markets, a keyhole bit is a useful way to add a cleaner hanging method to your finished pieces.
The Amana Tool 45650 Carbide Tipped 3/8" Keyhole Bit is a useful shop bit for creating hidden hanging slots in woodworking projects. Use it for picture frames, signs, plaques, wall art, and other pieces where you want a clean, professional way to mount the finished project.
