Professional tool for commercial or occasional use Glow plug Thread repair kit M10 x 1.0 Suitable for repairing the glow plug mounting thread in the cylinder head Fast and effective remedy for damage to cylinder head glow plug threads Unique assortment for the repair of worn or damaged threads Provides absolute firm and gas density seat for many uses This kit ensures a straight thread and new insert provides an efficient fit Essential kit that solves common problems on diesel engine alloy cylinder heads Set includes tools for the precise insertion of threaded inserts into the head and features a unique tap guide system to ensure their correct alignment Essential tool for alloy cylinder heads Simple handling and correct repair ensured every time SET INCLUDES THE FOLLOWING - Reamer for reaming original thread - Taps for threaded sleeves - Taps for trimming the original thread - Assembly tools for inserting the threaded sleeves - 5 x 12mm length threaded sleeves (inner thread - M10 x 1.0) (outer thread - M12 x 1.0) - 5 x 19mm length threaded sleeves (inner thread - M10 x 1.0) (outer thread - M12 x 1.0) Comes in a metal tin for easy storage and transportation SIMPLE TO USE 1. Threads with minor damage can be chased with a tap 2. If the thread is severely damaged and requires repair by introducing a tapped bush - use a reamer to re-ream the damaged threads 3. Now use a suitable tap to cut a new thread to accommodate the tapped bush 4. Slip the mounting sleeve over the matching mounting pin and screw on the tapped bush up to the required length 5. Use the mounting pin to insert he tapped bush into the previously prepared thread and tighten it gently 6. Remove mounting pin and sleeve.