8423/60 x 1.  Mains Set 0.060" UNDERSIZE or U/S. (Standard outside diameter, thicker on inside). These parts will be high quality parts supplied from our trusted, quality engine parts supplier that we have used for over 20 years. If you require a particular 'Brand' please ring and enquire and we will see if we can obtain that particular size in that brand for you (price will be subject to availability). 

Original Number C2315/60

TO AVOID PROBLEMS : YOU ARE ALWAYS ADVISED TO PURCHASE YOUR ENGINE COMPONENTS BEFORE MACHINING,  AS ALL COMPONENT SIZES / OVERSIZES MAY NOT ALWAYS BE AVAILABLE AT THE TIME YOU REQUIRE THEM.