Sutton T328 M14 x 2 Forming Tap Multi Coolant Groove UNI IK - SPM - TiAlN - DIN 2174
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The Sutton T328 is a forming (roll) tap with multi coolant groove (internal coolant) for metric coarse (M) threads, made from powder metallurgy, 11% cobalt high speed steel (SPM) with a TiAlN coating. This listing covers one size: M14 x 2.
A forming tap has no flutes and does not cut: it rolls the thread by displacing the metal, so it makes no chips and suits blind and through holes. Forming needs more machine power because of the torque involved, the rolled thread is stronger than a cut thread because the grain structure stays uniform through the thread form, and the tapping drill size differs from that of a cutting tap. The chamfer is Form C (2.5 x P).
The thread tolerance is 6HX. The tap is built to DIN 2174. The internal coolant duct (IK) delivers coolant through the tap to the cutting zone.
Where this product is used
- Suitable for materials with >10% elongation.
- Through or blind holes.
- Depths up to 3 x d1.
Design features
- Powder metallurgy, 11% cobalt high speed steel (SPM). SPM offers very high red hardness, wear resistance and the highest compressive strength of any high speed steel.
- TiAlN coating for abrasive and difficult-to-machine materials such as stainless steel, higher speeds and feeds, and reduced or no coolant.
- Form C chamfer, 2.5 x P.
- Thread tolerance 6HX.
- SPM for superior performance.
- Application specific geometry.
- DIN 2174 construction.
Sizes
Dimensions are in millimetres. Item numbers are the Sutton catalogue numbers. If you are not sure which tapping drill to use, try our tap drill size selector.
| Item no. | Thread size | Pitch (mm) | Tapping drill (mm) | l1 overall (mm) | l2 thread (mm) | d2 shank (mm) | sq square (mm) | l4 square length (mm) |
|---|---|---|---|---|---|---|---|---|
| T328 1400 | M14 x 2 | 2 | 13.1 | 110 | 25 | 11 | 9 | 12 |
Key specifications
| Specification | Detail |
|---|---|
| Catalogue code | T328 |
| Type | Forming (roll) tap with multi coolant groove |
| Thread series | Metric coarse (M) |
| Material | SPM |
| Finish | TiAlN |
| Designation | UNI - IK |
| Chamfer | Form C / 2.5 x P |
| Thread tolerance | 6HX |
| Standard | DIN 2174 |
| Sizes in this listing | M14 x 2 |
Related products
Related Sutton taps: T327 Metric Coarse Forming Tap Multi Coolant Groove UNI IK - SPM - TiAlN - DIN 2174, T329 Metric Coarse Forming Tap Multi Coolant Groove Cu - HSSE - CrN - DIN 2174, T326 Metric Coarse Forming Tap Multi Coolant Groove UNI - SPM - TiAlN - DIN 2174, T325 Metric Coarse Forming Tap Multi Coolant Groove UNI - SPM - TiAlN - DIN 2174, T323 Metric Coarse Forming Tap Multi Coolant Groove - HSSE - TiCN - DIN 2174.
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