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2. Klein's line - Wikipedia

   en.wikipedia.org/wiki/Klein's_line

   Klein's line or the line of Klein is a virtual line that can be drawn on an X-ray of an adolescent's hip parallel to the anatomically upper edge of the femoral neck.It was the first tool to aid in the early diagnosis of a slipped capital femoral epiphysis (SCFE), which if treated late or left untreated leads to crippling arthritis, leg length discrepancy and lost range of motion.

3. Lineman's pliers - Wikipedia

   en.wikipedia.org/wiki/Lineman's_pliers

   Lineman's pliers have a tapered nose suitable for reaming the rough edge of a 1 ⁄ 2-inch (13 mm) or larger conduit, or cleaning sharp metal from the inside of a standard metal knockout in an electrical enclosure such as a junction box or breaker panel. Some brands manufacture pliers (i.e. Ideal) with a narrower jaw, suitable for reaming out ...

4. List of drill and tap sizes - Wikipedia

   en.wikipedia.org/wiki/List_of_drill_and_tap_sizes

   A good tap drill is 85% (± 2 pp) of major diameter for coarse threads, and 90% (± 2 pp) of major diameter for fine threads. [ 1 ] For metric V threads , the concept of major minus pitch (i.e., the major or widest diameter of the intended screw in millimeters minus the pitch of the threads of that screw in millimeters per thread) yields a good ...

5. Robertson screw - Wikipedia

   en.wikipedia.org/wiki/Robertson_screw

   A Robertson screw, also known as a square screw [1] or Scrulox, [2] is a type of screw with a square-shaped socket in the screw head and a corresponding square protrusion on the tool. Both the tool and socket have a slight taper .

6. Drill bit shank - Wikipedia

   en.wikipedia.org/wiki/Drill_bit_shank

   One particular type of reduced-shank drill bits are Silver & Deming (S&D) bits, whose sets run from 9 ⁄ 16-inch (14 mm) to 1 + 1 ⁄ 2-inch (38 mm) drill body diameter with a standard 1 ⁄ 2-inch (13 mm) reduced shank for all. This allows drill presses with 1 ⁄ 2-inch (13 mm) chucks to run the larger drills. S&D bits are 6 inches (150 mm ...

7. Slipped capital femoral epiphysis - Wikipedia

   en.wikipedia.org/wiki/Slipped_capital_femoral...

   SCFE is a Salter-Harris type 1 fracture (fracture through the physis or growth plate) through the proximal femoral physis, which can be distinguished from other Salter-Harris type 1 fractures by identifying prior epiphysiolysis, an intact (in chronic SCFE) or partially torn (in acute SCFE) periosteum, and the displacement being slower. Stress ...