This 46 mm long combination spanner is a hand tool designed to turn 46 mm hexagonal nuts and bolts, combining a slim open jaw at one end with a matching ring (box) end at the other to give access in tight spaces while still allowing positive engagement for higher torque. Its primary use is for loosening and tightening metric fasteners where extra leverage and clearance are required compared with a standard-length spanner.

The spanner is manufactured from chrome vanadium steel (Cr-V), heat treated and tempered to provide the strength and fatigue resistance expected for workshop use. It has a polished chrome plated finish to resist corrosion and simplify cleaning. The head types are an open-ended jaw on one side and a ring/box end on the other; the ring end design gives full bearing on the fastener to reduce rounding while the slim open jaw provides quick placement on fasteners where clearance is limited. As a manually operated hand tool no drive type applies beyond hand torque using the spanner body.

Production and dimensions conform to commonly referenced industry standards for hand spanners (for example DIN specifications for combination spanners), ensuring consistent geometry and compatibility with standard metric fasteners. The material grade and heat treatment deliver the necessary mechanical properties for routine workshop torque; the chrome finish offers useful protection in industrial environments.

Typical applications include mechanical and plant maintenance, heavy vehicle and agricultural machinery repair, assembly and maintenance in construction and utilities, and general engineering where large metric fasteners are encountered. The extra length of this long spanner provides improved leverage for stubborn fasteners and better reach in confined assemblies compared with standard-length tools.

Key benefits are the corrosion-resistant chrome finish, the Cr‑V material and heat treatment that provide strength and durability, and the combined open and box ends that offer both quick placement and secure torque transfer. The 46 mm size is compatible with standard metric hex heads and provides interchangeability with other metric tooling.

Duchy Fasteners holds a wide range of combination spanners in store; please contact us for available sizes, alternate lengths and pack or set options to suit workshop and site requirements.