ADJ

general-purpose, multi-purpose
basic, primitive, standard, traditional
craftsmen using traditional tools
sophisticated, special
sharp
rusting/rusty
cutting, drawing, measuring
cordless, hand, machine, power
agricultural, engineering, farm, garden/gardening, industrial, woodworking

QUANT

set

VERB + TOOL

use
sharpen
blunt
Cutting concrete would blunt a metal-cutting tool
down ~s
Workers downed tools (= stopped work) in protest at poor safety standards in the works

TOOL + NOUN

kit

PHRASES

the tool/tools of the trade
The guitarist opened the case and took out the tool of his trade

ADJ

effective, essential, important, indispensable, invaluable, major, necessary, powerful, useful, valuable, vital
educational, learning, reference, research
This dictionary is an invaluable reference tool for advanced learners
ideological, negotiating, political, propaganda
We must ensure that education is not used as a political tool
communication, management, marketing
analysis/analytical, design, desktop, development, drawing, multimedia, presentation, programming, software