Spline drive bits

[Sberry]

On the Roosa Master pump there is a bolt to be removed that is spline drive, 6 sided thing. A 1/4 hex fits in it but it looks like a square cut spline. What tool is this?

 

[Zebrafive]

A picture would help. Torx maybe?

 

[Sberry]

Yes, I forgot to get a pic. I think it might be called a ribe socket.

 

[beenthere]

Here seems to be a pretty good pictorial on the many various drives, including the ribe and the torx, and the torx plus.

The most common specialty screw bits & drives in the Automotive & Diesel Industry - Apex Tool Company

 

[Sberry]

Yes, the perfect page. I did manage to fit a torx to it and get it out without damage. If I see those at some point and going to buy a set or 2 of the specialty ones.

 

[BHD]

I think that drive is called a BRISTOL SPLINE

https://bristolwrench.com/spline-drive-parts/

 

[Zebrafive]

Here seems to be a pretty good pictorial on the many various drives, including the ribe and the torx, and the torx plus.

The most common specialty screw bits & drives in the Automotive & Diesel Industry - Apex Tool Company

Thanks for posting. Most of them I do NOT have :banghead: And hope I never need. I thought Torx was the latest/greatest, but it looks like it's old news.

 

[oosik]

Thank goodness. The most exotic bolt around my place is a simple torx bolt. A guy would be dealing from the poor house if he needed a set to handle all those types. I have neither seen nor heard of most of those types. Must be very special application.

 

[Wagtail]

Here seems to be a pretty good pictorial on the many various drives, including the ribe and the torx, and the torx plus.

The most common specialty screw bits & drives in the Automotive & Diesel Industry - Apex Tool Company

Thanks for that link... although, as an addendum, the title should have said, "as of this moment."