What's 'hipsleys cylinder ridge cutter set' Worth?

Description

I'm looking to find out what 'hipsleys cylinder ridge cutter set' is worth. I have been cleaning out my fathers workshop and found this in there. It is in a wooden box and all parts are there. All I could find out about the company was they were taken over by Repco in the 1940's.

Anyones knowledge here would be greatly appreciated.