45650 Amana Tool Carbide Tipped 3/8" Keyhole Bit

The Amana Tool 45650 3/8" Keyhole Bit is a simple but really useful bit to have in the shop when you need to create clean, hidden hanging slots on the back of a project. If you’re making wall-mounted pieces and want a neat, professional way to hang them, a keyhole router bit is a great solution.

We use this router bit for adding keyhole slots in picture frames, plaques, and other wall hangings. It’s a great way to create a recessed slot that allows your project to hang flush against the wall while keeping the mounting method hidden from view.

This bit features a carbide-tipped cutting edge for durability and clean performance, and its compact design makes it well suited for detailed routing applications where precision matters.

Why We Like It

• Great for cutting keyhole slots for wall mounting

• Ideal for picture frames, plaques, signs, and other wall hangings

• Helps create a clean, hidden hanging method

• Allows projects to sit more flush against the wall

• Carbide-tipped for durability and long-lasting performance

• A handy bit for shops making decorative or functional wall-mounted pieces

Specifications

• Model: Amana Tool 45650

• Diameter (D): 3/8"

• D1: 13/64"

• Cutting Height (B): 3/8"

• B1: 3/16"

• Shank (d): 1/4"

• Overall Length (L): 1-37/64"

• Flutes: 1

What’s Included

• One (1) Amana Tool 45650 Carbide Tipped 3/8" Keyhole Bit

What We Use It For

We use this router bit for adding keyhole slots in:

• Picture frames

• Plaques

• Signs

• Other wall hangings

A keyhole slot is a great option when you want the finished piece to hang securely while keeping the mounting hardware hidden from view.

Product Features

This keyhole router bit is designed to cut a slot that allows a project to be mounted on a screw or fastener head. It’s a popular choice for woodworkers and makers creating wall-mounted pieces that need a clean, professional installation method.

Because the slot is recessed into the back of the workpiece, the project can sit closer to the wall for a cleaner finished look.

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 items.

What projects is this bit best for?
This bit is great for picture frames, plaques, signs, decorative wall art, and other wall-mounted woodworking projects.

Why use a keyhole slot instead of standard hanging hardware?
A keyhole slot helps keep the hanging method hidden and allows the piece to sit more flush against the wall, giving it 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.