General description This Laser Tools Glow Plug Threaded Insert Kit is designed for the easy repair of engine glow plug threads with minimal dismantling required. The kit includes specially designed insert fitting tools that provide optimal access to recessed glow plugs, ensuring proper fitting of the inserts. Technical specifications Thread size: M10 x 1.25mm Includes: 5 threaded inserts, fitting tool, reamer, and taps High tensile fitting bolts: 10.9 grade for longer service life Other information Made in Sheffield EU Registered Design Other size kits available: Laser Part No. 6777 (M8 x 1mm), 6778 (M9 x 1mm), 6779 (M10 x 1mm)