The best cutting machine for precise and efficient work depends on the specific needs of the application. Some factors to consider when choosing a cutting machine include:

1. The type of material to be cut: Different materials require different types of cutting machines. For example, sheet metal requires a different machine than a CNC router or a laser cutter.

2. The precision required: Different cutting machines have different levels of precision. A laser cutter can achieve higher precision than a plasma cutter, but it also has different material limitations.

3. The size of the material to be cut: Different machines have different maximum cutting sizes. For example, a large CNC router can cut larger materials than a small CNC router.

4. The budget: Different machines have different prices, and sometimes the most precise and efficient machine is not the most cost-effective choice.

5. The skill level of the operator: Some cutting machines are easier to operate than others, and the operator's skill level can affect the precision and efficiency of the cut.

In general, if you need to cut sheet metal, a plasma cutter or a laser cutter may be a good choice. If you need to cut large materials or complex shapes, a CNC router or a plasma cutter may be suitable. If you need high precision and small details, a laser cutter or a water jet cutter may be better. It is recommended that you consult with professionals or manufacturers for more information about specific machines and their application in your industry.