"rudimentary tools" is a correct and usable phrase in written English.
You may use it to describe tools that are not very advanced or of poor quality. For example: "The workers had access only to rudimentary tools, so the job was finished more slowly."
In her interview in the Guardian's hushed atmosphere and during her appearance at the ODI, Okot bemoaned Africa's farmers' lack of productivity and their reliance on rudimentary tools.
In many areas, when it is a question of interpreting the use of rudimentary tools or of certain elementary religious phenomena, prehistory and cultural anthropology are mutually helpful.
A mere semester of Latin and one of Greek rigorously taught would not only render sheepskin Latin legible, but the courses would also give kids rudimentary tools to use, for openers, in occasional investigations of Western civilization's received wisdom.
He has been working as a shoe shiner for three years, and the tin he is carrying holds the rudimentary tools of his trade – a sponge, brush and shoe polish.
And it's an appropriate name for this group from Wroclaw, Poland, which at first glance seems to use rudimentary tools — knives, coins, wineglasses, a metal bowl — to create percussive sounds.
Though there have been efforts at agarian reform the most prevalent agricultural existence is that of the "conuquero" - the nomadic peasant, who with rudimentary tools, raises subsistence crops on mountain slopes he has cleared, & when the soil becomes exhausted moves to a new patch of land & starts over.
Owners of Apple computers might first try the Activity Monitor, a rudimentary tool that is part of the operating system.
But it may be the only vehicle sold in America that doesn't include a single cup holder, and the only one that comes with a pair of leather gloves, along with a rudimentary tool kit, so you don't muss up your mitts making roadside repairs.
Dr. Siri has no laboratory, the most rudimentary of tools and "slightly charred French textbooks".
It is not the most full-featured photography app, offering only a handful of filters and some rudimentary editing tools.
In what was the United States, its cities gone and its population vastly reduced, the survivors live meagerly off the land, using the most rudimentary of tools.
