To measure the collective pitch of your helicopter, this TT pitch gauge is the best tool. It is suitable for blade chord from 27~68mm, and the measurement is up to +/-15 degree.
Royal mail at £3.50, or Express at £6.95.
Full details at checkout.
Some items cannot be sent via Royal Mail due to their restrictions.
To see shipping costs simply add the item to your basket and choose your country from the drop down list on the view cart page.