A 12-piece TAPARIA ring spanner set in chrome-vanadium steel, covering 6–32 mm — authorised Taparia dealer Multi Trade Combines stocks these at Guwahati, price on request.
A ring spanner (also called a box spanner or closed-end spanner) has a closed, 12-point ring at each end rather than the open U-jaw of a DE spanner. The ring completely encircles the nut or bolt head — distributing the load across all six flats and providing superior grip for high-torque work. The 12-point profile allows repositioning in 30-degree steps without fully removing the tool from a confined space.
The Taparia 12-piece ring spanner set covers the most commonly needed sizes from 6×7 mm through to 30×32 mm (paired sizes on each spanner), giving full coverage of metric fasteners from M4 through M20 range in standard applications. Chrome-vanadium steel construction with a polished finish gives corrosion resistance in the humid NE India climate.
Multi Trade Combines is an authorised Taparia dealer in Guwahati and stocks ring spanner sets at our AT Road counter.
| Brand | Taparia |
|---|---|
| Category | Power Tools |
| Key specs | 12-piece chrome-vanadium · 6–32 mm |
| Ring profile | 12-point double-hexagon ring — 30° repositioning |
| Material | Chrome-vanadium (CrV) steel, heat-treated and polished |
| Standard | ISI marked — BIS certified |
| Availability | In stock — price on request |
Ring spanners complement rather than replace the DE open-jaw set:
A ring spanner's closed 12-point ring engages all six flat faces of a hex nut or bolt head — it cannot slip off the fastener under load. This makes it ideal for high-torque applications: loosening rusty or over-tightened bolts, tightening to specified torque values in structural and mechanical work, and working in confined spaces where an open-jaw spanner might cam off. The 12-point ring also allows the spanner to be repositioned in 30-degree increments without removing it from the bolt — useful in tight spaces. For bolts that are corroded or have damaged flats, a ring spanner is often the only tool that will move them.
Taparia ring spanners are hand-held tools — they are not designed to be used directly with a torque wrench. A torque wrench uses a socket drive (typically 1/4", 3/8" or 1/2" square drive) and a socket or ring attachment. If you need to tighten to a specific torque, use a socket set with your torque wrench. Taparia ring spanners are used for general fastening and loosening where exact torque is not the primary requirement — though an experienced tradesperson can apply controlled torque by feel. For critical torque-controlled joints (cylinder head bolts, flanged joints, structural bolts), always use a calibrated torque wrench and socket.