In a chainsaw chain, the cutter blades and top plates are essential components of each cutter tooth. They work together to cut through wood efficiently and effectively. Here's a closer look at these components:

Cutter Blade:

Function: The cutter blade is the leading edge of each cutter tooth. It's the part of the tooth that makes initial contact with the wood and starts the cutting action.

Design: The shape and sharpness of the cutter blade influence how smoothly and effectively the chain cuts through the wood. It can be flat, angled, or have other configurations depending on the tooth design.

Importance: A well-designed cutter blade is crucial for efficient cutting. It should be sharp and maintain its cutting edge to ensure the chain operates effectively.

Top Plate:

Function: The top plate is the flat surface behind the cutter blade. It provides support to the cutter blade and helps guide the chain through the wood.

Design: The top plate can have various angles and shapes depending on the tooth design. It may have facets or beveled edges to facilitate wood chip removal.

Importance: The top plate contributes to the stability and cutting efficiency of the tooth. It helps control the depth of the cut and guides the chain as it moves through the wood.

The combination of the cutter blade and top plate, along with the tooth design, determines the cutting performance of the chainsaw chain. Proper maintenance, including sharpening these components, is essential to maintain the chain's efficiency and ensure safe and effective cutting. When sharpening a chainsaw chain, it's crucial to maintain the correct angles and profiles of both the cutter blade and top plate to achieve optimal cutting results.