●Removes 8mm and 10mm glow plugs. ●Designed for removing damaged or difficult glow plugs from the the cylinder head. ●This set includes: Ratchet T-bar Drill holding adaptor Puller outer housing Force screw Force nut Allen key Dual-size high-tensile step drill M8 & M10 Pilot drill centring sleeves Pilot drills 3.5mm Tap: 1/4", M8, M10 Puller adaptor mandrels