The Sealey 3 Piece Spark Plug Box Spanner Set provides traditional long-reach access to spark plugs in confined engine compartments. These double-ended box spanners feature an L-bar design, offering excellent leverage and control when removing or installing spark plugs across a range of vehicle applications. Each spanner in this set offers two sizes per tool, covering six common spark plug dimensions: 14mm, 16mm, 17mm, 18mm and 21mm. The 150mm length provides the extended reach necessary for accessing recessed spark plugs, whilst the traditional box spanner design prevents rounding of plug hex surfaces. The included L-bar ensures you can apply controlled torque even in awkward positions. This set is particularly suited to professional mechanics, mobile service engineers and vehicle workshops working on cars, motorcycles and light commercial vehicles. The supplied storage pouch keeps the three spanners organised and protected between jobs, making it ideal for mobile toolkits or workshop