This paper is a proposal for an adaptation of Gary Hamel business model theory, applied to small metal-mechanic sector companies, in order to improve their competitiveness in an environment where competing companies in the Colombian market are those with whose countries have signed FTAs, countries located in the top ten rankings of competitiveness. This implies that these small businesses must be prepared to compete with strong innovation. The proposal includes a step-by-step that small metal-mechanic companies must implement to be more creative, innovative and competitive; a link between the Gary Hamel business model and Norton and Kaplan strategic maps with a Balanced Scorecard, with examples based on qualitative researches to companies in the sector. Although the proposal includes a template designed in Excel, this article aims to explain to the business owner how it is possible to improve its competitiveness in a practical way and applied to the business.