Sealey Tap & Die Set - 40pc - Metric - AK3040

This Sealey 40-piece metric tap and die set is designed for professional threading applications. T...

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eBaySealey Tap & Die Set 40 Piece Split Dies Metric Professional Tools/Accessories
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alanwadkinstoolstore.co.ukSealey AK3040 40 Piece Metric Tap & Die Set Spilt Dies
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OnBuy.comSealey Ak3040 Tap & Die Set 40 Piece Split Dies Metric 5024209625326
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Product Information

Full details

The Sealey AK3040 is designed for professional mechanics and automotive enthusiasts who require a versatile and precise solution for creating or restoring metric threads. This comprehensive 40-piece set offers high-quality alloy steel components that deliver reliable cutting performance across a wide range of sizes; however, users should note that this kit is strictly limited to metric threads and is not compatible with imperial/SAE specifications.

All features

Model Part NumberAK3040
BrandSealey

Extended Product Information

FAQs

Does this set include both taps and dies?

Yes, this is a complete 40-piece set containing both metric taps and dies along with the necessary handles.

What is the smallest and largest size in this kit?

The set covers metric sizes from 3mm up to 12mm.

Can I use this set on hardened steel?

This set is designed for standard automotive and workshop materials. It is not recommended for use on hardened or stainless steel as this may damage the cutting edges.

Is the die holder adjustable?

The die holder features a self-centring mechanism to ensure the die is held perfectly straight during the threading process.

How do I identify which tap to use for a specific bolt?

Use the included screw pitch gauge to measure the distance between threads on your bolt to match it to the correct die or tap.

Does the set come with a warranty?

Sealey products typically come with a manufacturer's warranty; please refer to the documentation included in the packaging for specific terms.

Troubleshooting

Tap is difficult to turn

Back the tap out, clear the metal chips from the flutes, apply fresh cutting oil, and ensure the tap is aligned straight.

Threads appear rough or torn

The tap or die may be dull, or you may not be using enough high-quality cutting lubricant. Inspect the cutting edge for damage.

Bolt does not fit properly after re-threading

Verify that you selected the correct thread pitch using the included gauge; the bolt might have a different thread pitch than the one used.

Pros and Cons

Pros

  • High-grade alloy steel construction provides excellent durability
  • Self-centring die holder ensures perfectly straight thread cutting
  • Comprehensive range of sizes from 3mm to 12mm
  • Includes essential accessories like a pitch gauge for quick identification
  • Durable case keeps tools secure and portable

Cons

  • Metric only; not suitable for imperial/SAE threads
  • Manual threading requires skill to avoid tap breakage
  • Case hinges may wear with heavy, long-term use

Setup, Compatibility & Care

To maximize the lifespan of your AK3040, proper maintenance is essential. Always clean the taps and dies with a soft brush or compressed air after use to remove metal shavings and old cutting fluid. Lightly coat the tools with a thin layer of machine oil before returning them to the storage case to prevent rust.

This set is strictly for use with metric hardware. Do not attempt to force these tools onto imperial-sized bolts or nuts, as doing so will damage both the tool and the workpiece. Ensure the T-handle tap wrench is tightened firmly around the square shank of the tap to prevent slipping during the threading operation.

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