Technical data: Brand: Yato Symbol: YT-05339 Series: GRD Material: CrV Application: for glow plugs Surface finish: hardened|sandblasted Length: 85 mm Size: 8|9|10|12|14|16 mm Locking: no Tool holder size: 3/8" (9.5 mm) Number of pieces in the set: 6 Set of wrenches with a joint designed for installing and removing glow plugs. made of durable CrV steel contains hexagonal keys in sizes: 8, 9, 10, 12, 14 and 16 mm special design with a joint allows you to reach hard-to-reach places rubber inserts in the sockets make it easier to remove the spark plugs drive: 3/8" packed in a handy suitcase ** Illustrative photo.