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King Dick Whitworth Combination Spanners

King Dick Whitworth Combination Spanners

Regular price £7.50
Regular price Sale price £7.50
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I'm probably guilty of having taken the standardisation of nuts and bolt for granted.  Things are likely to be Metric, and because I often work on older items then Imperial.  Then occasionally neither are quite right ... and thats where Whitworth (BSW) comes in (sometimes.)

British Standard Whitworth (BSW) was the worlds first screw thread standard.  Set in 1841 by Joseph Whitworth.  Prior to this individual manufactures or industries used their own fasteners.  If you'd like to know more I highly recommend reading "Exactly" by Simon Winchester.

One thing to remember is that Whitworth spanners are sized by the bolt diameter, not the distance across the hex head sides as with Metric and Unified (AF).  What that means is a 1/2 BSW is massive when compared with 1/2 BSF.

So do you need a set of Whitworths? 

  • Probably only if you regularly work on pre-WW2 vehicles or machinery.  Anything in that 100 years up to 1940 might well be Whitworth.  But the parts bins at British automotive manufactures were large and the tail of the odd Whitworth fastening use was quiet long.  At a show recently we learned that E-type Jags up to the early 1960's still used them a lot.
  • If you work on classic British cars up to the 1970's then there is one place were you are very likely to need a Whitworth spanner.  Have you wondered why the nut on your battery terminals seems to be between 1/2 AF and 13mm?  That's because it's likely to be 1/4 BSW!
  • Apparently the standard tripod mount for SLR cameras is still 1/4 BSW as well.

Luckily, if you need a set of Whitworth spanners - or just the odd one - then King Dick have you covered.  They are one of the few manufacturers in the world still making Whitworth spanners.

King Dick Whitworth spanners specs:

  • Hot forged from 31 CrV3 Chrome Vanadium Steel
  • Precisely machined, heat-treated and nickel-chrome plated
  • Made to DIN 3113
  • The 1/4 x 5/15 Heritage Black is a modern take on the traditional black finish on spanners and tools.

You are purchasing a single spanner of the size indicated.  To order a set just add each size to your basket.

We also stock Imperial (AF) and Metric combination spanners from King Dick.

Customer Reviews

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Anonymous
Correction

I think you've got a bit mixed up, BSW and BSF are imperial what you're calling imperial is Unified being a unification of American and British threads so that the UK and US could standardise, with the across flats dimension nominally the spanner size.

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Customer Reviews

Based on 1 review
0%
(0)
0%
(0)
100%
(1)
0%
(0)
0%
(0)
A
Anonymous
Correction

I think you've got a bit mixed up, BSW and BSF are imperial what you're calling imperial is Unified being a unification of American and British threads so that the UK and US could standardise, with the across flats dimension nominally the spanner size.