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2. Nail (fastener) - Wikipedia

   en.wikipedia.org/wiki/Nail_(fastener)

   Nails are made in a great variety of forms for specialized purposes. The most common is a wire nail. [2] Other types of nails include pins, tacks, brads, spikes, and cleats. Nails are typically driven into the workpiece by a hammer or nail gun. A nail holds materials together by friction in the axial direction and shear strength laterally.

3. Soil nailing - Wikipedia

   en.wikipedia.org/wiki/Soil_nailing

   Cross section of a slope with soil nails installed. Soil nailing is a remedial construction measure to treat unstable natural soil slopes or unstable man-made (fill) slopes as a construction technique that allows the safe over-steepening of new or existing soil slopes.

4. Powder-actuated tool - Wikipedia

   en.wikipedia.org/wiki/Powder-actuated_tool

   The colored straws in the tray contain cartridges that are loaded singly into the tool. Also visible are 75 mm hardened steel nails with 8 mm heads. Powder actuated tools can be variously classified: Direct acting (the charge acts directly on the head of the nail or high velocity), or indirect (using an intermediate piston or low velocity)

5. Punch (tool) - Wikipedia

   en.wikipedia.org/wiki/Punch_(tool)

   A center punch forms a large enough dimple to "guide" the tip of the drill. The tip of a center punch has an angle between 60 and 90 degrees. [1] When drilling larger holes, where the drill bit is wider than the indentation produced by a center punch, the drilling of a pilot hole is usually needed.

6. Nail gun - Wikipedia

   en.wikipedia.org/wiki/Nail_gun

   A nail gun, nailgun or nailer is a form of hammer used to drive nails into wood or other materials. It is usually driven by compressed air , electromagnetism, highly flammable gases such as butane or propane, or, for powder-actuated tools, a small explosive charge. Nail guns have in many ways replaced hammers as tools of choice among builders.

7. Chamfer - Wikipedia

   en.wikipedia.org/wiki/Chamfer

   A chamfer with a "lark's tongue" finish. A chamfer (/ ˈ ʃ æ m f ər / SHAM-fər or / ˈ tʃ æ m f ər / CHAM-fər) is a transitional edge between two faces of an object.Sometimes defined as a form of bevel, it is often created at a 45° angle between two adjoining right-angled faces.