6781 Master Glow Plug Threaded Insert Kit

Made in Sheffield Made in the United Kingdom EU Registered Design Product Video available

Modern engine design has seen the glow plugs threads becoming more recessed into the cylinder heads making the repairing of damaged threads more difficult. The unique Laser design, utilising fitting tools with reduced dimensions at the working end makes access to recessed plug threads easier.

  • The universal use of small thread sizes like M8, M9 and M10 has led to increased thread damage on glow plug removal.
  • Kit includes large and small taps, reamer, inserts and insert fitting body.
  • 4 bolts,sizes: M8 x 1mm, M9 x 1mm, M10 x 1mm & M10 x 1.25mm.
  • The fitting bolts supplied are specially manufactured from high tensile steel to ensure the tools will last much longer and not stretch in use.
  • EU Registered Design. Made in Sheffield.
TSP: £296.58 ex VAT £355.90 inc VAT

Modern engine design has seen the glow plugs threads becoming more recessed into the cylinder heads making the repairing of damaged threads more difficult. The unique Laser design, utilising fitting tools with reduced dimensions at the working end makes access to recessed plug threads easier.

  • Ce kit conçu en Angleterre permet de poser et compresser des inserts pour bougies de préchauffage lorsque l'accès est limité
  • Les nouvelles tailles de bougies 8-9 et 10mm causent de nombreux dégâts sur le filetage de la bougie lors de leur extraction. Les nouveaux moteurs positionnent ces dernières davantage en profondeur, rendant la réparation du filetage plus difficile. En uti
  • Le kit est fourni avec 5 inserts filetés, le boulon de pose en acier à haute résistance 10.9 pour une plus longue durée de vie, l'alésoir et un taraud.
  • Tous les composants sont disponibles individuellement.
TSP: £296.58 ex VAT £355.90 inc VAT
Made in Sheffield Made in the United Kingdom EU Registered Design Product Video available
 Buy Locally

Press Release
Easy to use glow plug threaded insert kits

Glow plug threads are easily damaged, especially on alloy cylinder heads. This can be due to corrosion, over-tightening or even drill damage when the head has broken off a seized glow plug. The solution is to fit a new threaded insert, and these threaded insert kits from Laser Tools have been designed to offer the best possible access to recessed glow plug apertures. The threaded insert is then easily and securely fitted. The kits cover all common glow plug sizes: part number 6777 suits glow plugs with M8 x 1mm threads; 6778 suits M9 x 1mm threads; 6779 is for M10 x 1mm threads (12mm and 19mm length inserts included); 6780 is for M10 x 1.25mm threads and 6781 is the master kit that includes all four kits.

The kits include a specially designed insert fitting tool (Euro Registered design, and manufactured in Sheffield by Laser Tools) that is much narrower than others available and offers much improved access to recessed glow plugs. The centre bolt of the tool is manufactured from high tensile steel for a long service life. Each kit includes five threaded inserts (ten in 6779) and a reamer to ensure the correct diameter aperture for cutting the thread for the insert. Two taps are also included; one for cutting the insert thread and one for checking the new thread is clean and accurate.

Professional tools for the professional workshop, the kits are available now from your Laser Tools stockist.


Spares/Consumable Spares
We have the following spare parts/accessories available for this product.
Description Spare Item No.
Glow Plug Threaded Insert Kit M8 x 1mm 6777
Glow Plug Threaded Insert Kit M9 x 1mm 6778
Glow Plug Threaded Insert Kit M10 x 1mm 6779
Glow Plug Threaded Insert Kit M10 x 1.25mm 6780

Buy Online from