TATA Double Open End Spanner Set of 12 (6 x 7 to 30 x 32) — Matt Finish

Stopping a job to hunt for the right spanner is one of the most common small delays in hand-tool work. The TATA Double Open End Spanner Set of 12 is put together to remove that delay. It brings twelve double-ended spanners into a single set, covering the range from 6 x 7 mm at the small end up to 30 x 32 mm at the large end, in a Matt Finish.

Each spanner is a double open end spanner (often called a double open end wrench): a U-shaped open jaw at each end, with the two jaws sized differently. That means every spanner in the set handles two fastener sizes, and the set as a whole handles nuts and bolts needing anything from a 6 mm jaw to a 32 mm jaw, without reaching for a second tool kit.

Who It’s For

A full-range set suits anyone whose work moves between different fastener sizes:

• Professional mechanics who disassemble and refit parts across a wide mix of nuts and bolts
• Industrial maintenance workers who need one reachable set for routine servicing
• Plumbers and HVAC technicians working on fittings, fixtures and equipment
• DIY home users building a first proper toolbox for furniture assembly, appliance repair and general household fastening

If you only ever use one or two sizes, a single spanner may be enough. If your jobs vary, a set saves the repeated purchase and the repeated search.

Why Buy a Double Open End Spanner Set

A single double open end spanner covers one pair of sizes. A set of twelve covers the range most hand-tool work draws on, so the right jaw is already in your hand when the fastener changes. The open-jaw design also lets you slide the spanner onto a nut or bolt from the side, which is useful where a ring spanner or socket cannot be dropped straight over the top. For anyone building out their DIY tools, a set is also a simpler starting point than buying sizes one at a time.

Key Features and What They Mean for You

• 12 spanners in one set — Twelve pieces cover the full 6 x 7 mm to 30 x 32 mm range, so you are less likely to find the one size you need missing from your kit.
• Double-ended design — Two differently sized open jaws per spanner means each tool does double duty, which keeps the set practical to carry and sort.
• Wide size range (6 mm to 32 mm) — From small fasteners on compact assemblies to larger nuts on heavier equipment, one set spans both ends of everyday work.
• U-shaped open jaws — The open side lets you place the spanner onto a fastener from the side, which helps when there is no clear line of access from above.
• Matt Finish — A non-reflective surface for those who prefer it to a polished look. The set is also offered in other finishes if you prefer a different appearance.

How to Use Your Spanner

1. Test your nut or bolt against the spanner ends to find which jaw size fits it.
2. Slide the open jaw fully onto the flat sides of the fastener. Make sure it sits deep inside the jaw, not just on the tips, to prevent rounding off the bolt.
3. Pull or push the handle in the direction of rotation. When loosening a tight bolt, position the angled head so the open side faces the direction you are pulling.
4. If the space is too tight for a full swing, take the spanner off, flip it over, re-attach it to the nut and turn again to get more swing room.

With a full set on hand, step one is quicker: you can try the neighbouring sizes straight away instead of guessing.

What Makes This Set Different

Many shoppers start with a single spanner and end up buying a second, a third, and a fourth as jobs demand different sizes. This set takes the opposite approach: one purchase that spans 6 x 7 mm through 30 x 32 mm, each tool double-ended, finished in matt. It is a straightforward, practical set for people who want the range covered up front.

What You Receive

One set of 12 double open end spanners, covering sizes from 6 x 7 mm to 30 x 32 mm, in Matt Finish.

Before You Buy

Check that the sizes you work with most fall within the 6 mm to 32 mm range this set covers. This is a hand spanner set: it is used by turning the handle manually, as described in the steps above. If you need sizes outside this range, additional spanners will be required.

G. FAQ Section

Q1: What size range does this set cover?

The set covers double open end spanners from 6 x 7 mm up to 30 x 32 mm.

Q2: How many spanners are in the set?

There are 12 double-ended open jaw spanners in the set.

Q3: What finish does this set have?

This listing is for the Matt Finish version.

Q4: Who is this set suitable for?

It is aimed at professional mechanics, industrial maintenance workers, plumbers, HVAC technicians and DIY home users who work with nuts and bolts across a range of sizes.

Q5: How do I avoid rounding off a bolt with these spanners?

Slide the open jaw fully onto the flat sides of the fastener so it sits deep inside the jaw, not just on the tips. This is the main way to prevent rounding off the bolt.