Sealey Premier Extra-Long Combination Spanner 18mm. Drop-forged Chrome Vanadium steel spanner. Hardened, tempered and chromed with a fully polished, mirror finish. Open-end and WallDrive® ring combination with extra-long shaft. Lifetime guarantee*. Model No. AK631018. Weight: 0.27kg. Length: 333mm. Nett Weight: 0.23kg. Set Model No(s): AK6310 - 10pc Set (includes sizes 10-19mm). Size: 18mm.