Spanners
JCB slogging spanners are the choice when standard ring spanners cannot generate enough torque. Made from chrome vanadium steel with a single-ring head designed to be struck with a hammer, the range covers 24mm through to 90mm — the sizes found on agricultural machinery hubs, construction plant, industrial pipework and heavy structural steelwork. All carry a lifetime JCB warranty (terms apply). The striking face is machined flat for consistent hammer contact and the ring profile is precision-formed to grip fasteners firmly without rounding under high impact torque.
Frequently Asked Questions
Do JCB slogging spanners carry a warranty?
Yes. JCB slogging spanners carry a lifetime JCB warranty, reflecting the quality of the chrome vanadium steel construction. Terms and conditions apply — see individual product pages for full warranty details.
What is a slogging spanner and how is it used?
A slogging spanner is a heavy single-ring spanner designed to be struck with a hammer to generate very high torque on large or seized fasteners. Position the ring firmly on the fastener, hold the handle securely, and strike the flat striking face with a club hammer. Always wear eye protection.
What sizes of JCB slogging spanners are available?
JCB slogging spanners are available from 24mm to 90mm: 24, 27, 30, 34, 36, 50, 60, 75, 80, 85 and 90mm. The range covers the majority of large fasteners found on agricultural machinery, construction plant and industrial equipment.

