| Listed in parts books | Not catalogued by year yet |
TUBE BOX SPANNER 1/4 - 3/16 Whitworth (Cylinder Head)
A 1/4 - 3/16 Whitworth tube box spanner for cylinder head fasteners.
This is a tube box spanner sized for 1/4 and 3/16 Whitworth fasteners, the kind used to get into tight cylinder head fixings where a regular open-end or ring spanner can't reach. It's a double-ended tool, one size on each end, built for reaching down into recesses around the head studs and nuts.
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The canonical description ties it specifically to cylinder head work, so keep this one in the toolbox for head servicing rather than general use. We don't have much more history on this exact part number beyond that description, but the sizing and intended use are clear from what's on file.
If you're not sure whether 1/4 - 3/16 Whitworth matches the fasteners on your particular head, give us a call before ordering and we'll help confirm.
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