What is the difference between the 1-phase and 3-phase versions?

Both use the same 5HP main motor and 1HP scoring motor at 220V. The 1-phase version runs on standard single-phase 220V power, while the 3-phase version needs a 3-phase 220V supply, which is common in commercial shops.

Does it come with a scoring blade?

The machine has a dedicated 1HP scoring motor, which is the feature that separates it from basic table saws. Check the included accessories for the scoring blade itself, since the motor and the blade are separate items.

Can it cut full 4x8 sheets?

Yes. The sliding table and 51-inch rip fence are sized for full sheet goods, which is the main reason to choose a panel saw over a contractor table saw.

How much space does it need?

It is a floor-standing saw with a long sliding carriage, so plan for clearance in front of and behind the table for full-sheet travel. It is not a benchtop machine.

Is it worth it over a cabinet table saw?

If you cut laminated sheet goods regularly, the scoring motor and sliding table give cleaner edges and less handling than a cabinet saw. For solid-wood work only, a cabinet saw is simpler and takes less room.