hollow reamer

  • 21Splitting maul — Woodsplitting maul Other names Wood maul Wood mall Block Buster (Typically used throughout Australia and New Zealand) Classification Hand tool Related Sledge hammer …

    Wikipedia

  • 22Razor — For other uses, see Razor (disambiguation). Razor A Gillette Mach 3 razor …

    Wikipedia

  • 23Mallet — For other uses, see Mallet (disambiguation). A mallet is a kind of hammer, usually of rubber,or sometimes wood smaller than a maul or beetle and usually with a relatively large head. Contents 1 Tools 2 Musical instruments 3 Toys …

    Wikipedia

  • 24Lathe (metal) — Center lathe with DRO and chuck guard. Size is 460 mm swing x 1000 mm between centers A metal lathe or metalworking lathe is a large class of lathes designed for precisely machining relatively hard materials. They were originally designed to… …

    Wikipedia

  • 25tunnels and underground excavations — ▪ engineering Introduction        Great tunnels of the world Great tunnels of the worldhorizontal underground passageway produced by excavation or occasionally by nature s action in dissolving a soluble rock, such as limestone. A vertical opening …

    Universalium

  • 26opening — I (New American Roget s College Thesaurus) Open space Nouns 1. opening, hole, foramen; aperture, yawning, oscitancy, dehiscence; chasm (see interval); breach. 2. (small opening) puncture, perforation, scuttle; pinhole, keyhole, loophole, porthole …

    English dictionary for students

  • 27tool — I (New American Roget s College Thesaurus) n. instrument, implement, utensil, device, machine; cat s paw, dupe, henchman, intermediary. See instrumentality. II (Roget s IV) n. 1. [An implement] Syn. implement, utensil, machine, instrument,… …

    English dictionary for students