Sutton T128 M3 x 0.5 Spiral Point Tap W-AZ - HSSE - Bright - DIN 371
Available
The Sutton T128 is a spiral point (gun) tap (W designation) for metric coarse (M) threads, made from premium grade high speed steel (HSSE) with a bright finish. This listing covers 6 sizes from M3 x 0.5 to M10 x 1.5.
The gun (spiral point) nose curls the chip forward, ahead of the tap and out of the hole, so chip clogging is avoided and coolant can flow without problems. It suits through holes. The W designation is for soft materials, with a very high rake angle and low thread relief for good chip flow. The chamfer is Form B (4.5 x P), for through holes in medium and long chipping materials.
The thread tolerance is ISO 2 / 6H. The tap is built to DIN 371: reinforced shank with square drive.
Where this product is used
- Use in soft elastic materials.
- Through holes.
- Depths up to 3 x d1.
Design features
- Premium grade high speed steel (HSSE). The vanadium grade gives high wear resistance and toughness for most tapping applications.
- Bright finish for general purpose applications.
- 3 flutes.
- Form B chamfer, 4.5 x P.
- Thread tolerance ISO 2 / 6H.
- The W designation is for soft materials, with a very high rake angle and low thread relief for good chip flow.
- DIN 371 construction, reinforced shank with square drive.
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) | l3 (mm) | d2 shank (mm) | sq square (mm) | l4 square length (mm) | Flutes |
|---|---|---|---|---|---|---|---|---|---|---|
| T128 0300 | M3 x 0.5 | 0.5 | 2.5 | 56 | 11 | 18 | 3.5 | 2.7 | 6 | 3 |
| T128 0400 | M4 x 0.7 | 0.7 | 3.3 | 63 | 13 | 21 | 4.5 | 3.4 | 6 | 3 |
| T128 0500 | M5 x 0.8 | 0.8 | 4.2 | 70 | 16 | 25 | 6 | 4.9 | 8 | 3 |
| T128 0600 | M6 x 1 | 1 | 5 | 80 | 19 | 30 | 6 | 4.9 | 8 | 3 |
| T128 0800 | M8 x 1.25 | 1.25 | 6.8 | 90 | 22 | 35 | 8 | 6.2 | 9 | 3 |
| T128 1000 | M10 x 1.5 | 1.5 | 8.5 | 100 | 24 | 39 | 10 | 8 | 11 | 3 |
Key specifications
| Specification | Detail |
|---|---|
| Catalogue code | T128 |
| Type | Spiral point (gun) tap |
| Thread series | Metric coarse (M) |
| Material | HSSE |
| Finish | Bright |
| Designation | W - AZ |
| Chamfer | Form B / 4.5 x P |
| Thread tolerance | ISO 2 / 6H |
| Standard | DIN 371 |
| Flutes | 3 |
| Sizes in this listing | 6 sizes, M3 x 0.5 to M10 x 1.5 |
Related products
Related Sutton taps: T129 Metric Coarse Spiral Point Tap W-AZ - HSSE - Bright - DIN 376, T127 Metric Coarse Spiral Point Tap Cu - HSSE - CrN - DIN 376, T126 Metric Coarse Spiral Point Tap Cu - HSSE - CrN - DIN 371, T130 Metric Coarse Spiral Point Tap W-AZ - HSSE - TiN - DIN 371, T125 Metric Coarse Spiral Point Tap W - HSSE - Steam Oxide - DIN 376.
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M3
Model Number: T1280300
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M4
Model Number: T1280400
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M5
Model Number: T1280500
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M6
Model Number: T1280600
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M8
Model Number: T1280800
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M10
Model Number: T1281000
