Editing Adjustable spanner (section)

{{Short description|A spanner (a wrench) that can be adjusted to handle various sizes of fasteners}}
{{Redirect|Adjustable wrench|the music composition|Adjustable Wrench}}
[[File:Adjustablewrenches.jpg|thumb|From the bottom: {{olist
    |The first BAHCO-improvement adjustable wrench from 1892 (Enköping Mekaniska Verkstad)
    |Adjustable wrench from 1910 with an improved handle (BAHCO)
    |Adjustable wrench from 1915 with a slightly rounder handle (BAHCO)
    |Adjustable wrench from 1954 with improved handle and new jaw angle of 15 degrees (BAHCO)
    |Adjustable wrench from 1984 and the first with ERGO handle (BAHCO)
    |Today's version of the adjustable wrench from 1992 with ERGO (BAHCO)
}}]]

An '''adjustable spanner''' (UK and most other Anglophone countries), also called a '''shifting spanner''' (Australia and New Zealand)<ref>{{cite web |url=https://www.thefreedictionary.com/shifting+spanner |title=shifting spanner |author=The Free Dictionary |work=The Free Dictionary |accessdate=2022-10-18 }}</ref> or '''adjustable wrench''' (US and Canada),{{efn|In many non-English speaking countries, it is called an '''English wrench''' (e.g., in Turkey<ref>{{cite web |url=https://www.ntv.com.tr/ne-demek/ingiliz-anahtari-ne-demek-35233|title=What does English wrench mean?|author=English wrench |work=İngiliz Anahtarı ne demek? |accessdate=2022-10-18 }}</ref>).}} is any of various styles of [[wrench|spanner (wrench)]] with a movable jaw, allowing it to be used with different sizes of [[fastener]] head ([[nut (hardware)|nut]], [[screw|bolt]], etc.) rather than just one fastener size, as with a conventional fixed spanner.<ref>{{cite book|title=FCS Engineering Technology L2|url=https://books.google.com/books?id=2BZlRRATDG4C&pg=PA161|year=2009|publisher=Pearson South Africa|isbn=978-1-77025-592-0|pages=161–}}</ref>