Tensorial terms of the Hamiltonian can be measured by solid-state single-crystal nuclear magnetic resonance (NMR) spectroscopy which requires a goniometer NMR probehead. Goniometer probes; however, are not standard parts of solid NMR spectrometers and are available only at a much higher price than magic-angle spinning (MAS) probeheads widely used in research. Due to requirements of MAS experiments, modern probeheads are designed for small ceramic rotors, which are 1–4mm in diameter, to reach very high angular frequencies, so there are several older 7mm MAS probeheads used rarely todays in NMR laboratories. In this paper, a simple method is presented how to rebuild step-by-step a 7mm Bruker MAS probehead to be suitable for single-crystal spectroscopy. In the second part 31 P chemical shift tensors of Na4P2O7·10H2O are determined to demonstrate the functionality of the rebuilt probehead.