| Also known as | D1907 |
| Diagram | Fig. 33 — TOOLKIT · ref 6 |
| Subsystem | accessories |
| Listed in parts books | 1969–1974, 1976–1980 |
RING SPANNER CYL BASE NUT - Double Box End Wrench, 7/16 x 1/2 A/F - Replaces 60-0370
Double box-end ring spanner, 7/16 x 1/2 A/F, made for reaching the cylinder base nuts.
This is the double-ended box spanner Triumph put in the toolkit specifically for the cylinder base nuts, sized 7/16 x 1/2 A/F. It's a ring spanner rather than an open-end, which matters here because the base nuts sit down in tight quarters where a standard open jaw either won't fit or wants to slip off the nut. The thin-wall design on both ends is what lets it reach into that recessed area without you having to grind down a good wrench to make it fit.
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Catalog records show this one across toolkit and tool-roll listings from the late '60s through 1980, and it replaces the earlier 60-0370 number, so if your parts book or an old toolkit shows that number, it's the same tool. Also turns up under the D1907 alias if you're cross-checking an older list.
If you're missing this out of your toolkit or just tired of chewing up a combination wrench trying to get at those base nuts, it's a straightforward thing to add back in.
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