The 18mm Sealey Ratchet Combination Spanner bridges standard and heavy-duty applications, making it valuable for professionals working on commercial vehicles, agricultural equipment, and industrial machinery. This versatile size handles substantial loads while maintaining precision control. The Chrome Vanadium steel construction provides the strength needed for demanding torque applications, while the WallDrive® 72-tooth ratchet ring ensures ultra-smooth operation with just 5° rotation required between clicks. This combination makes the 18mm spanner ideal for brake caliper bolts, suspension components, and other critical fastening applications. Features and Benefits: • 18mm size for commercial and industrial applications • 72-tooth mechanism with 5° engagement arc • WallDrive® ratchet ring prevents fastener damage • Chrome Vanadium steel for heavy-duty use • Lifetime guarantee Specifications: Brand: Premier Length: 242mm Nett Weight: 0.21kg Set Model No(s): AK63907 - 7pc Set (includes 8-19mm), AK63912 - 16pc Set (includes 8-19mm, three square drive adaptors and one bit holder) Size: 18mm