A spade and a container for applying water (watering can) are the essentials. A stake and some protection are usually helpful for protecting the growing sapling.
All that is needed is to carry the sapling to the planting area, to open the land with a single blade cut, or by cutting a T, wet the soil, place the sapling and finally firm the soil back in place with a boot. Don’t compact the soil too much or the air will not be able to circulate. The depth should be what is needed so that the top of the soil that was in the pot is the same as the level of the land.
Protection wraps stop deer from eating the leaves, and stop rodents from eating the bark. Sometimes saplings can be planted in areas of bramble which offer protection.