What are some of the tools used by the roman slaves on a roman farm?

Forks used for winnowing (Isa 30:24; Jer 15:7), as in more recent times, were probably made of wood and had several curved prongs.

The harrow the agricultural operation of harrowing is mentioned as being distinct from plowing. Pulverizing and smoothing the soil constitute the chief function of the modern harrow, though it is also used for mulching, covering seed, and removing weeds. Anciently, perhaps a weighted-down board or a rough log was dragged over the plowed soil to break up the clods and level the ground.

Hoes were employed for clearing land of weeds and probably also for breaking up clods of earth.

Mattocks were probably used for grubbing and for loosening the soil.