What's The name of the tool

[jinty]

My tap is dripping and I went to replace the washer. I removed the plastic cover on the centre of the tap grip and found I needed a special tool to slacken off the tap grip. It needs a multi splined tool similar to a torx screwdriver but with more splines.
Any help ?

 

[Dotty]

RobinMichael.

 

[Dotty]

Sorry! Sorry! I was thinking of a different type of tool!

Can you post a pic of where you've gotten to please?

 

[Gasmk1]

torq driver

 

[snowhead]

Spline?

 

[rpm]

Are you seeing only the top half of these?

 

[Billy Bob Bob]

Not read the replies but is it a App plumbing?

 

[drip-dry]

sound like a right tools got involved here.... think what it needs is a plumber,,,,