A process for the production of a tool having a base body of cemented carbide, cermet, ceramic, steel or high speed steel and a single-layer or multi-layer wear-protection coating applied thereto in a CVD process, wherein the wear-protection coating has at least one Ti 1-x Al x C y N z layer having stoichiometry coefficients 0.70 ≤ x < 1, 0 ≤ y < 0.25 and 0.75 ≤ z < 1.15 and of a thickness in the range of 1 μm to 25 μm, wherein for production of the Ti 1-x Al x C y N z layer a) the bodies to be coated are placed in a substantially cylindrical CVD reactor designed for an afflux flow on the bodies to be coated with the process gases in a direction substantially radially relative to the longitudinal axis of the reactor, b) two precursor gas mixtures and are provided, wherein the first precursor gas mixture contains 0.005% to 0.2 vol-% TiCl 4, 0.025% to 0.5 vol-% AlCl 3 and as a carrier gas hydrogen (H 2) or a mixture of hydrogen and nitrogen (H 2 /N 2), and wherein the second precursor gas mixture contains 0.1 to 3.0 vol-% of at least one N-donor selected from ammonia (NH 3) and hydrazine (N 2 H 4), and as a carrier gas hydrogen (H 2) or a mixture of hydrogen and nitrogen (H 2 /N 2), and the first precursor gas mixture and/or the second precursor gas mixture optionally contains a C-donor selected from acetonitrile (CH 3 CN), ethane (C 2 H 6), ethene (C 2 H 4) and ethyne (C 2 H 2) and mixtures thereof, wherein the total vol-% proportion of N-donor and C-donor in the precursor gas mixtures (VG1, VG2) is in the range of 0.1 to 3.0 vol-%, c) the two precursor gas mixtures (VG1, VG2) are kept separate before passing into the reaction zone and are introduced substantially radially relative to the longitudinal axis of the reactor at a process temperature in the CVD reactor in the range of 600°C to 850°C and a process pressure in the CVD reactor in the range of 0.2 to 18 kPa, wherein the ratio of the volume gas flows ( V̇) of the precursor gas mixtures (VG1, VG2) V̇ / V̇ is less than 1.5. a) the bodies to be coated are placed in a substantially cylindrical CVD reactor designed for an afflux flow on the bodies to be coated with the process gases in a direction substantially radially relative to the longitudinal axis of the reactor, b) two precursor gas mixtures and are provided, wherein the first precursor gas mixture contains 0.005% to 0.2 vol-% TiCl 4, 0.025% to 0.5 vol-% AlCl 3 and as a carrier gas hydrogen (H 2) or a mixture of hydrogen and nitrogen (H 2 /N 2), and wherein the second precursor gas mixture contains 0.1 to 3.0 vol-% of at least one N-donor selected from ammonia (NH 3) and hydrazine (N 2 H 4), and as a carrier gas hydrogen (H 2) or a mixture of hydrogen and nitrogen (H 2 /N 2), and the first precursor gas mixture and/or the second precursor gas mixture optionally contains a C-donor selected from acetonitrile (CH 3 CN), ethane (C 2 H 6), ethene (C 2 H 4) and ethyne (C 2 H 2) and mixtures thereof, wherein the total vol-% proportion of N-donor and C-donor in the precursor gas mixtures (VG1, VG2) is in the range of 0.1 to 3.0 vol-%, 0.005% to 0.2 vol-% TiCl 4, 0.025% to 0.5 vol-% AlCl 3 and as a carrier gas hydrogen (H 2) or a mixture of hydrogen and nitrogen (H 2 /N 2), and 0.1 to 3.0 vol-% of at least one N-donor selected from ammonia (NH 3) and hydrazine (N 2 H 4), and as a carrier gas hydrogen (H 2) or a mixture of hydrogen and nitrogen (H 2 /N 2), c) the two precursor gas mixtures (VG1, VG2) are kept separate before passing into the reaction zone and are introduced substantially radially relative to the longitudinal axis of the reactor at a process temperature in the CVD reactor in the range of 600°C to 850°C and a process pressure in the CVD reactor in the range of 0.2 to 18 kPa,