I am often asked by new consultants to describe some of the tangible instruments (as separate from methodologies like Five Forces, SWOT, 3-4Cs/STP/4Ps, Growth Share Matrix, etc.) that folks should become familiar with as core to practicing management consulting. Based on my personal experience in professional services, traditional consulting, independent, and vendor consulting environments, here's a list of must-haves for regular consultants:

1. engagement kickoff deck "heavy" (with full governance structure) and/or kickoff deck "light" (with core team structure) for starting up projects
2. full financial model (complete financial statements) and/or project-level financial analysis (mostly project NPV and revenue/cost modeling)
3. engagement methodology/workbooks and/or project summary charts
4. workshop decks
5. minutes templates
6. business plan, marketing plan, technology strategy, operations strategy, etc. templates
7. case studies
8. interim management review decks
9. final executive presentation decks (example here)
10. consulting interview guides
11. consulting-style CVs
12. contracts
13. sell, pitch, or discussion decks and proposals

Somewhat annecdotally, I have observed that many folks that get into consulting and come from strictly corporate environments (without consulting experience) find it initially unnatural to tie all of these elements together over and over again. They also seem less familiar with the concept #8 relative to other items in the list. In any case, I see the list above as consulting bread and butter.