Harmonics up to the 18th order are generated from solid targets by focusing $2\mathrm{mJ}$ , $50\mathrm{fs}$ pulses at $800\mathrm{nm}$ to a spot size of $1.7\mathrm{\mu m}$ (FWHM). To our knowledge, this is the first demonstration of high-harmonic generation with a very short focal length paraboloid ( $f/1.4$ ) and kilohertz laser system. The harmonics have a low divergence ( $<4°$ ) compared to the driving beam and conversion efficiencies ( $>{10}^{-7}$ per harmonic) comparable to gas harmonics. No contrast enhancement techniques are employed, and the system is capable of operating at $500\mathrm{Hz}$ .