Myford Super-7 (1955) – Headstock cap-scew size??

[flatlineParticipant @flatline]

Good evening all…

I am still very much a beginner and have had my Super-7 since May last year…. I have learnt enough to understand that now is the time to get the bed, saddle & cross-slide re-ground…

I have disassembled virtually everything, and am down to the last 4 bolts/cap-scews that hold the headstock to the bed.

So far I have got away with a selection of metric & AF tools, but these last 4 definitely need the right tool for the job.

Can anyone tell me what size Allen-socket I need to undo these please??

Many thanks.. 🙏

 

[bernard towersParticipant @bernardtowers37738]

if as you say you have af imperial sizes then you are there

[flatlineParticipant @flatline]

Unfortunately I don’t have any AF Allen-sockets…

I have an old Allen-key that has no markings but measures 0.215”/5.45mm across the flats… it fits, but it’s not ideal… as I say, it’s quite old & of unknown manufacture so I don’t know if those measurements reflect the actual size required??

any help greatly appreciated.

[Nigel Graham 2Participant @nigelgraham2]

“Getting away with” is about right. Normally, the fasteners on these lathes are all BSF, BSW and BA.

You risk rounded-off hexagons by using poorly-fitting spanners and keys – oh, and skinned fingers from spanners suddenly slipping off, but skin grows back.

[Martin KyteParticipant @martinkyte99762]

You need a TEE wrench on these as they will be very tight. Do get something that fits correctly.

 

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