Hobbico 4-Way Wrench with Plug Storage FEATURES: It has storage for 4 glow plugs (helps them stay clean) Metric sizes, 10mm, 12.7mm, 8mm and 9mm The Glow Plug Wrench is Chrome plated INCLUDES: One 4-Way Wrench w/Plug Storage gab4/19/94 ir/jl INCLUDES: One 4-Way Wrench w/Plug Storage gab4/19/94 ir/jl