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Here we fit accretion column models to NuSTAR spectra of three intermediate polars; V709 Cas, NY Lup and V1223 Sgr in order to determine their masses. From fits to 3-78 keV spectra, we find masses of $M_{\\rm WD}=0.88^{+0.05}_{-0.04}M_{\\odot}$, $1.16^{+0.04}_{-0.02}M_{\\odot}$ and $0.75\\pm0.02M_{\\odot}$ for V709 Cas, NY Lup and V1223 Sgr, respectively. 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