Supercrazy 16pcs Damaged Glow Plug Removal Remover Tool Kit 8mm & 10mm SF0031 Removes 8mm and 10mm glow plugs. 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. Come with a carry case for easy storage