• For removing the heater element that can break off during glow plug removal.• Saves time not having to remove the cylinder head.• Works by drilling/tapping a thread into the broken element so the supplied glow plug adaptors can be used to extract.• Supplied with seven drilling/tapping guides: M8 x 1, M10 x 1, M10 x 1.25mm.• Five glow plug extraction adaptors: M8 x 1, M10 x 1, M10 x 1.25mm.• Thread: M8, M10.• Drill Diameter: ø2.5, 3.3mm.For removing the heater element that can break off during glow plug removal. Saves time not having to remove the cylinder head. Works by drilling/tapping a thread into the broken element so the supplied glow plug adaptors can be used to extract. Supplied with seven drilling/tapping guides and five glow plug extraction adaptors with either a M8 or M10 thread.• For removing the heater element that can break off during glow plug removal. • Saves time not having to remove the cylinder head. • Works by drilling/tapping a thread into the broken element so th