Description
Overview:
This twin-ended open end spanner covers four common British thread standards in one tool: 1/2 Whit (12.7 mm) and 9/16 BSF (14.3 mm) on one end, with 3/8 Whit (9.5 mm) and 7/16 BSF (11.1 mm) on the other. Made from solid steel with a slim profile, it is built for reliable fastening and release of nuts and bolts on machinery that uses Whitworth and BSF fasteners. Suitable for workshop, site, farm and garage use, it is especially useful on classic British-built equipment, plant, engines and garden machinery. Supplied as unused old stock, it offers the practicality of a quality spanner with vintage appeal. Marked "SUPERSLIM" (MPN: 3/8 WHIT SUPERSLIM) for easy identification and better access in tight spaces.
Key Features:
- Four sizes in one tool: 1/2 Whit (12.7 mm), 9/16 BSF (14.3 mm), 3/8 Whit (9.5 mm), 7/16 BSF (11.1 mm)
- Whitworth and BSF compatibility for older British machinery and restorations
- Slim, open-ended jaws for quick placement and access in confined areas
- Durable steel construction for everyday workshop and site use
- Twin-ended design reduces the number of tools needed in the kit
- Clear size markings for fast selection and fewer setup errors
- Unused vintage stock; may show minor tarnish or shelf wear without affecting function
- Balanced, straightforward design that is easy to handle with gloves
- Suitable for tightening and loosening hex fasteners without adjusting mechanisms
Typical Applications:
Maintenance and repair of construction equipment, garden machinery, stationary engines, compressors, generators, agricultural kit and classic British machines using Whitworth or BSF fasteners. Ideal for assembly, adjustment, and breakdown work where quick engagement and a slim head are needed.
Also known as:
Open-ended spanner, double-ended spanner, Whitworth spanner, BSF spanner, Whit/BSF combination spanner, open-ended wrench, double-ended wrench, slim spanner, SUPERSLIM Whitworth/BSF spanner.
Product Specifications
| L&S Part No. | 3/8 WHIT SUPERSLIM |
|---|---|
| Unit of Sale | 1 |
| Size | 1/2 Whit - 9/16BSF. 3/8 Whit - 7/16 BSF |
| Key Features | - Covers 1/2 Whit, 9/16 BSF, 3/8 Whit, 7/16 BSF sizes - Compatible with Whitworth and BSF fasteners - Slim profile for access in confined spaces - Made from durable solid steel - Twin-ended design reduces tool count in kit |

