- Comprehensive thread repair kit ideal for repairing sump, gearbox and differential drain plug threads. - Used to tap the damaged thread slightly over size, then fit a new drain plug and washer supplied. - Set is suitable for the most popular threads used on cars and light commercial vehicles. - Sizes: M13 x 1.25, M13 x 1.5, M15 x 1.5, M17 x 1.5, M20 x 1.5, M22 x 1.5mm. - Supplied in storage case.