WCO Explanatory Notes reproduced for reference. © World Customs Organization. Verify against official WCO publication.
84.59 - Machine-tools (including way-type unit head machines) for drilling, boring, milling, threading or tappin by removing metal, other than Iathes (including turning centres) of heading 8 l 5 8 (+). 8459.10 - Way-type unit head machines - Other drilling machines : - - Numerically controlled 8459.29 - - Other - Other boring-milling machines : 8459.31 - - Numerically controlled 8459.39 - - Other 8459.40 - Other boring machines 8459.21 - Milling machines, knee-type : 8459.51 8459.59 8459.6 1 8459.69 - - Numerically controlled - - Other - Other milling machines : - - Numerically controlled - - Other 8459.70 - Other threading or tapping machines This heading covers machine-tools for drilling, boring, milling, threadin or tapping by removing metal, other than lathes (including turning centres) of heading 8 4 . d Ln general machine-tools are power-driven but similar machines, worked by hand or edal, are also covered by this heading. These latter types can be distin ished from the han tools of f fr heading 82.05 and from the tools for working in the hand of eading 84.67, by the fact that they are usually designed to be mounted on the floor, on a bench, on a wall or on another machine, and are thus usually provided with a base plate, mounting frame, stand, etc. This heading covers : (1) Way-type unit head machines. These machines, which are desi ed to erform drillin , borm~,millin , threading or tapping operations, have no attachedyae. &ey consist on y of a ' fiarne" &&ng a motor and a tool holder and are equip ed with guides (ways) and can therefore move back and forth repetitively when place on a suitable base. The wor iece is inserted in a work holder inde endent of the way-type unit head machine whic moves back and forth horizontally for &lling, boring, etc. "R s f (2) Drillin machines. These are used for cutting cylindrical holes, including recessed holes, in artic es by means of a rotatin tool called a drill or bit. The article remains immobile durin the working of the tool w ich is rotated (cuttin action) or fed into the work (feed action$. This h e d n g also covers drilling machines w ch employ a fixed tool to work a rotating article, or like machines using both processes. k % ii Drillin machines include single s indle machines, radial or otherwise, and machines with severa spindles (multi-spindle dril ing machines). F f (3) Boring machines. These further work the internal surface of an existing hole to exact dimensions. Boring may be cylindrical, conical or s herical. Boring machines are used, for example, for worlung to exact dimensions the cylinI fer bores of piston engines or pumps. The operation of boring involves the use of free standin facing tools with fixed dimensions (borer drills, straight or helically-fluted finis%mg borers) or variable dimensions (expanding-end borers, inset-strip borers, micrometrically adjustable boring heads, boring heads wtth inset cutters) or with tools working on a guideway (adjustable, expanding or non-adjustable cutters and hollow one-piece sleeves or sleeves wlth inset parts). This heading includes, inter alia, vertical borin machines, horizontal boring machines multiple %oring machines,. boring machines for ored shafts as well as machmes commonly called spindle made up of two concentric spindles which interior spindle consists of a long sleeve allowing the borer), while the external spindle, enerally coupled to for fitting with a milling cutter (mi ing spindle). r This headin also covers those machines desi ed and built essentially for boring, even if they are a&fed for carryin out other a btional operations (for example, drilling, surfacing, mi ing, turnin an sometimes even screw cutting . On the other hand, lathes (includin turning centre8 which carry out boring as an auxl iary or additional operation are classi ed in heading 84.58. d % I (4) Milling machines. These work a plane or profile surface by means of rotating tools (known as milling cutters , the circular cutting movement is combined w ~ t ha traversing movement of the article ed on the machine table. Milling machines include, inter alia, horizontal milling machines, vertical milling machines, horizontal-vertical millin machines, milling machines with adjustable heads, plane-milling machines, univers milling machines which, in addition to the normal milling work, can by means of a dividing head mounted on the machine, mill splines in a shaft, or spur or helical gears, repetitive milling machines, milling machines for grooving or chamfering, engraving millers. t), (5) Tapping machines (i.e., machines to produce a screw thread in an existing hole) and threading machines for threading bolts, screws, etc. It should be noted that thread milling machines are regarded as milling machines. PARTS AND ACCESSORIES Sub'ect to the general provisions regarding the classification of arts (see the General ~x~!anato? Note to Section XVI),parts and accessories (other than t!e tools of Chapter 82) of the mac me-tools of this heading are classified in heading 84.66. The heading also excludes : (a) Machine-tools for working an material by removal of material, by laser or other light or photon beam, ultrasonic, electm-discLe, electro-chemical, electmn beam, ionic-beam or plasma arc processes; water-jet cutting machines (heading 84.56). (b) Machining centres, unit construction machines (single station) and multi-station transfer machines, for working metal (heading 84.57). (c) Lathes (including turning centres) for removing metal (heading 84.58). (d) Machine-tools for planing and other machine-tools working by removing metal, of heading 84.61. (e) Tools for working in the hand, pneumatic, hydraulic or with self-contained electric or non-electric motor (heading 84.67). ( f ) Machines and appliances for testing, of heading 90.24.
Subheading Explanatory Notes. Subheadings 8459.21,8459.31,8459.51 and 8459.61 See the Explanatory Note to subheadings 8458.11 and 8458.91. Subheadings 8459.51 and 8459.59 The machines of these subheadings can be identified by the presence of a console which consists of a horizontal element which moves vertically on a stand by means of guideways. This stand supports the worhble which is operated in a transverse direction. The console usually contains the devices necessary to dnve the machines.
1.- This Chapter does not cover : (a) Millstones, grindstones or other articles of Chapter 68; (b) Machinery or appliances (for example, pumps) of ceramic material and ceramic parts of machinery or appliances of any material (Chapter 69); (c) Laboratory glassware (heading 70.17); machinery, appliances or other articles for technical uses or parts thereof, of glass (heading 70.19 or 70.20); (d) Articles of heading 73.21 or 73.22 or similar articles of other base metals (Chapters 74 to 76 or 78 to 81); (e) Vacuum cleaners of heading 85.08; (f) Electro-mechanical domestic appliances of heading 85.09; digital cameras of heading 85.25; (g) Radiators for the articles of Section XVII; or (h) Hand-operated mechanical floor sweepers, not motorised (heading 96.03). 2.- Subject to the operation of Note 3 to Section XVI and subject to Note 11 to this Chapter, a machine or appliance which answers to a description in one or more of the headings 84.01 to 84.24, or heading 84.86 and at the same time to a description in one or more of the headings 84.25 to 84.80 is to be classified under the appropriate heading of the former group or under heading 84.86, as the case may be, and not the latter group. (A) Heading 84.19 does not, however, cover : (i) Germination plant, incubators or brooders (heading 84.36); (ii) Grain dampening machines (heading 84.37); (iii) Diffusing apparatus for sugar juice extraction (heading 84.38);