1 INTRODUCTION
1.1 The two-phase formation scenario
1.2 Stellar metallicity gradients
1.3 This paper

2 DATA
2.1 Observations
2.2 Reduction

3 ANALYSIS
3.1 2D CaT index maps
3.2 1D metallicity radial profiles
3.3 Metallicity offset with SAURON
3.4 Empirical correction
3.5 Radial profile extraction from 2D metallicity maps
3.6 Metallicity gradients

4 RESULTS
4.1 Metallicity gradients outside $2.5~\mathrm{R_{e}}$

5 DISCUSSION
5.1 Inner and Outer metallicity gradients
5.2 Metallicity gradient trends with galaxy mass
5.3 Radial IMF variations

6 CONCLUSIONS