The 9x10mm Doe spanner is a compact, double-ended open spanner with two different jaw sizes (9 mm and 10 mm) designed for turning hexagonal fasteners where space is limited. Its primary use is to provide a slim, accessible means of applying hand torque to metric nuts and bolts in confined or awkward positions where sockets or larger tools cannot fit.

This spanner is manufactured from chrome vanadium (Cr-V) steel and is heat-treated to optimise toughness and resistance to bending. The finish is bright chrome plating to improve corrosion resistance and ease of cleaning. The tool is a double open-ended type with 15° offset jaws to allow incremental turning in tight clearances. While drive type and thread type are not applicable to a hand spanner, the dimensional form complies with common standards for open-ended spanners; it is produced to meet recognised DIN/ISO/BS tool dimensional and manufacturing requirements (for example ISO 3318 / DIN 895 are the typical references for open-ended wrenches).

Typical applications include light engineering, maintenance and repair work, plumbing adjustments, bicycle and motorcycle servicing, electrical enclosure assembly, and general workshop fitting where adjacent components restrict access. Industries that commonly use this size are automotive garages, facilities maintenance, HVAC and refrigeration, and production assembly lines that require precise, repeatable manual tightening of small metric fasteners.

Key benefits of the 9x10mm Doe spanner include reliable corrosion resistance from the chrome finish, consistent mechanical strength from the Cr-V material and heat treatment, and the compatibility of its jaw widths with standard metric fasteners. The slim profile and dual-size ends reduce the need to carry multiple individual spanners, while the 15° offset permits effective use in shallow recesses or against panels without removing surrounding components.

Duchy Fasteners stocks this spanner individually and as part of small metric sets, with common size ranges available across our hand tool range. Please contact us for pack options and to check current availability of DR01854.