When trimming laminate, such as high-pressure laminate (HPL) for countertops or other applications, the Amana Laminate Trimmer with Euro Square Bearing Carbide Tipped Router Bits are designed to yield clean, chip-free edges, with little to no hand trimming needed. Here's what you should consider:

1. Material of the Router Bit:

Carbide-tipped bits: These are ideal for cutting laminates because of their sharpness and durability. Carbide maintains its edge longer than high-speed steel, ensuring cleaner cuts over extended use.

2. Type/Shape of the Router Bit:

People often use straight bits for laminate trimming. This will give a nice, straight edge, no question.

But the Amana laminate trim bit has a slight taper, allowing for adjustment up or down the work edge, to finish off the edge with a smooth and burr-free cut with little to no hand filing. 

3. Bit Size:

When trimming laminate, either a 1/4-inch or 1/2-inch shank diameter is suitable.

A 1/2-inch shank often provides better stability and less vibration, which can lead to cleaner cuts. But this is seldom an issue with laminate.

And, if you are using a smaller laminate trim router, you are likely confined to a 1/4" bit. Make sure the shank size of the bit will fit into your machine.

4. Bit Speed:

Always consult the manufacturer's recommendations for the router bit's RPM. Different sizes and types of bits will have different optimal speeds. Ensure your router is capable of adjusting to the necessary RPM for the bit you're using.

5. Bearing:

The Amana square bearing is manufactured with a strong non-stick Teflon® which won't mark your edge. It can be wiped clean easily. Even better, glue will not stick to the bearing.

5. Safety Considerations:

Laminate can be prone to chipping, so always move the router in the correct direction (usually counterclockwise around the outer edge, but it can depend on the specific setup) and use a steady, moderate feed rate.

Always wear safety equipment, including safety glasses and hearing protection, when using a router.

Ensure the laminate is securely attached to its substrate before routing to avoid any movement that could cause chipping or tear-out.

So, for general laminate trimming, the Amana Laminate Trimmer with Euro Square Bearing Carbide Tipped Router Bits are the hands-down best choice. They leave no marks or scratches on high gloss laminates, glue will not stick to the bearing, you'll be left with little to no hand-filing, 

Ensure you select the right size for your router and application, and always prioritize safety when working with power tools.