Robert,
It's worth trying as the worst case scenario is you might be forced to check it as baggage, nothing more.
Technically, the regulations don't prohibit carrying on such items. HOWEVER, in the USA enroute to a Team Trials, I once had my flying handle confiscated by security. One thing about airport security is they don't need to quote you a regulation if they just have a feeling they don't like what you're carrying. Just as I though my FAI handle was gone for good, on the return flight my name was "paged" over the PA & I was allowed to return with my handle!
Whilst in London, I was prevented from boarding with a set of steel 1/2A lines & 2 (1.5V) NI-Starters. "Why would you want to take these on board, I was asked. " Well, they don't call this airport 'Thief-row' for nothing", I responded. Again no joy. So I had to go all the way back & check in my lines & ni-starters (in a plastic bag) as checked luggage. The only saving grace was given the impending departure time I asked for and received a security escort both to & back from the check in counter, so I wouldn't miss my flight...
So the answer is... IT DEPENDS on the personality of the person checking you! YEAH, not the answer I was hoping for either! (Just my experiences)
Sadly, post 9-11 & TSFA / Homeland Security made what was easy travelling, a whole lot more troublesome for the honest passengers...sigh!
Good Luck!