Tool choice
Dicing and fry-cutting are different jobs
A dicing grid and a French-fry disc both cut firm ingredients, but they produce different shapes and use different tools. If your usual prep depends on evenly cubed vegetables for a soup or a chopped salad, a dicing kit is the relevant package feature. If you want long, narrow potato pieces for a fry-style cut, the French-fry disc is the tool to check.
Dicing depends on a matched assembly
The KFP1319 and KFP1320 product packages list a dicing kit with a cleaning tool. The shared manual describes assembling the base, blade and cover inside the work bowl, aligning that cover with the wide-mouth feed chute, then feeding pieces with the smaller or medium pusher. It instructs the owner to remove the parts and use the clean-out tool after processing. That extra assembly and cleanup is the practical cost of selecting a dicing configuration.
Do not assume a normal chopping blade produces the same shape. Chopping is less regular, while dicing passes food through a grid. The manual lists potatoes, vegetables, fruit and cheese as suitable examples. Ingredient size, firmness and preparation still affect whether a particular food suits the kit.
A fry disc does not mean every dimension is known
The KFP1320 product description calls out steak fries and its package includes the dedicated French-fry disc. The manual lists hard vegetables and potatoes for French-fry cutting. The sources inspected for this family do not state an exact output width, so a shopper with a strict cut-size requirement should not treat a marketing label as a millimeter measurement.
The KFP1320 includes both the dicing kit and French-fry disc, while KFP1319 includes the dicing kit without the fry disc and KFP1318 is the standard configuration without either. If you need both, the complete package matters more than buying by bowl size alone.
Compare before choosing
The KFP1318 review covers the standard tool set. The KFP1319 review covers dicing and the included refrigerator lid. The KFP1320 review adds the French-fry disc to those tools. The discontinued Cuisinart FP-13DGM is another documented dicing package: its manual describes a 10 mm grid, a six-cup diced-fruit/vegetable limit and no frozen-food or meat dicing, but the manufacturer lists the machine as discontinued and out of stock. It has no French-fry disc. Check the exact model number and package list on any current listing; an attachment can be sold separately or packaged only with one configuration.