A 90-degree V-groove bit is a type of router bit used in woodworking and other machining applications. It is designed with a cutting edge in the shape of a V, forming a 90-degree angle at the tip of the bit. The V-groove bit is commonly used to create decorative grooves, chamfers, or V-shaped channels in wood, plastic, and other soft materials.

Here are some key features and uses of a 90-degree V-groove bit:

Shape and Cutting Edge: The cutting edge of a 90-degree V-groove bit forms a sharp V-shaped point. The angle between the two sides of the V is 90 degrees, creating a precise and clean groove when used for cutting or carving.

Decorative Grooves: One of the primary uses of a 90-degree V-groove bit is for creating decorative grooves or chamfers on the surface of a workpiece. These grooves can add visual interest, create shadow lines, or serve as a border for inlay work. The bit is often used in sign making, lettering, and other fine woodworking projects.

Joinery and Edge Treatment: V-groove bits are also used in joinery applications. They can be used to create V-shaped channels for miter joints, where two pieces of wood are joined at a 45-degree angle. The V-groove provides a clean and precise corner for a tight fit. Additionally, the bit can be used to chamfer or bevel the edges of boards or panels, giving them a decorative or finished appearance.

Material Compatibility: A 90-degree V-groove bit is typically used with softer materials such as wood, plywood, MDF (medium-density fiberboard), or plastic. It is not recommended for use on harder materials like metal or stone, as the cutting edge may dull quickly or become damaged.

Router Compatibility: 90-degree V-groove bits are designed to be used with a router, a power tool used for shaping and cutting wood. The bit is inserted into the router's collet and secured with a collet nut. It is important to ensure that the bit's shank diameter matches the collet size of the router.

Variations: V-groove bits come in various sizes and configurations. The width of the V-groove can vary, allowing for different groove depths and widths. Additionally, some V-groove bits have a flat bottom, while others may have a rounded or pointed tip, providing versatility for different applications.

It's important to follow proper safety procedures when using a 90-degree V-groove bit or any other router bit. Always wear appropriate safety gear, such as safety glasses or goggles, and use the bit with caution to avoid accidents or injury.