Sutton T175 1/4 x 28 TPI Spiral Point Tap - HSSE - TiN - DIN 2184-1
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The Sutton T175 is a spiral point (gun) tap (N designation) for UNF threads, made from premium grade high speed steel (HSSE) with a gold titanium nitride (TiN) coating. This listing covers 16 sizes from #2 x 64 TPI to 1 x 12 TPI.
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 N designation is for normal, general purpose materials, with a normal rake angle and normal thread relief. The chamfer is Form B (4.5 x P), for through holes in medium and long chipping materials.
The thread tolerance is 2B. The tap is built to DIN 2184-1.
Where this product is used
- General purpose use, materials up to approx. 1000 N/mm2.
- Through holes.
- Suitable for machine operations.
- Depths up to approx. 3 x d1.
Design features
- Premium grade high speed steel (HSSE). The vanadium grade gives high wear resistance and toughness for most tapping applications.
- Gold titanium nitride (TiN) coating for 3 to 8 times longer tool life than uncoated tools, with higher speeds and feeds.
- 2 to 4 flutes, depending on size.
- Form B chamfer, 4.5 x P.
- Thread tolerance 2B.
- The N designation is for normal, general purpose materials, with a normal rake angle and normal thread relief.
- DIN 2184-1 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 | TPI | Tapping drill (mm) | l1 overall (mm) | l2 thread (mm) | l3 (mm) | d2 shank (mm) | sq square (mm) | l4 square length (mm) | Flutes |
|---|---|---|---|---|---|---|---|---|---|---|
| T175 0218 | #2 x 64 TPI | 64 | 1.9 | 45 | 9 | - | 2.8 | 2.1 | 5 | 2 |
| T175 0284 | #4 x 48 TPI | 48 | 2.35 | 56 | 11 | 18 | 3.5 | 2.7 | 6 | 2 |
| T175 0318 | #5 x 44 TPI | 44 | 2.65 | 56 | 11 | 18 | 3.5 | 2.7 | 6 | 3 |
| T175 0351 | #6 x 40 TPI | 40 | 2.9 | 56 | 13 | 20 | 4 | 3 | 6 | 3 |
| T175 0417 | #8 x 36 TPI | 36 | 3.5 | 63 | 13 | 21 | 4.5 | 3.4 | 6 | 3 |
| T175 0483 | #10 x 32 TPI | 32 | 4.1 | 70 | 16 | 25 | 6 | 4.9 | 8 | 3 |
| T175 0635 | 1/4 x 28 TPI | 28 | 5.5 | 80 | 19 | 30 | 7 | 5.5 | 8 | 3 |
| T175 0794 | 5/16 x 24 TPI | 24 | 6.9 | 90 | 22 | 35 | 8 | 6.2 | 9 | 3 |
| T175 0953 | 3/8 x 24 TPI | 24 | 8.5 | 100 | 20 | 35 | 10 | 8 | 11 | 3 |
| T175 1111 | 7/16 x 20 TPI | 20 | 9.8 | 100 | 24 | - | 8 | 6.2 | 8 | 3 |
| T175 1270 | 1/2 x 20 TPI | 20 | 11.5 | 110 | 28 | - | 9 | 7 | 10 | 3 |
| T175 1429 | 9/16 x 18 TPI | 18 | 12.8 | 110 | 32 | - | 11 | 9 | 12 | 3 |
| T175 1588 | 5/8 x 18 TPI | 18 | 14.5 | 110 | 32 | - | 12 | 9 | 12 | 3 |
| T175 1905 | 3/4 x 16 TPI | 16 | 17.5 | 125 | 34 | - | 14 | 11 | 14 | 4 |
| T175 2223 | 7/8 x 14 TPI | 14 | 20.5 | 140 | 34 | - | 18 | 14.5 | 17 | 4 |
| T175 2540 | 1 x 12 TPI | 12 | 23.5 | 160 | 38 | - | 18 | 14.5 | 17 | 4 |
Key specifications
| Specification | Detail |
|---|---|
| Catalogue code | T175 |
| Type | Spiral point (gun) tap |
| Thread series | UNF |
| Material | HSSE |
| Finish | TiN |
| Designation | N |
| Chamfer | Form B / 4.5 x P |
| Thread tolerance | 2B |
| Standard | DIN 2184-1 |
| Flutes | 2 to 4 |
| Sizes in this listing | 16 sizes, #2 x 64 TPI to 1 x 12 TPI |
Related products
Related Sutton taps: T176 UNF Spiral Point Tap VA - HSSE - Steam Oxide - DIN 2184-1, T173 UNF Spiral Point Tap - HSSE - Bright - DIN 2184-1, T177 UNF Spiral Point Tap VA - HSSE - TiCN - DIN 2184-1, T439 UNF Spiral Point Tap Intermediate - HSSE - Bright - ISO 529, T440 UNF Spiral Point Tap Intermediate - HSSE - Steam Oxide - ISO 529.
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Sutton T175 UNF Spiral Point Tap - HSSE - TiN - DIN 2184-1: 1/4 / 28
SKU: A0013381 | Model: T1750635
Diameter (inch) 1/4, TPI 28. Features
The Sutton T175 is a spiral point (gun) tap (N designation) for UNF threads, made from premium grade high speed steel (HSSE) with a gold titanium nitride (TiN) coating. This listing covers 16 sizes from #2 x 64 TPI to 1 x 12 TPI.
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 N designation is for normal, general purpose materials, with a normal rake angle and normal thread relief. The chamfer is Form B (4.5 x P), for through holes in medium and long chipping materials.
The thread tolerance is 2B. The tap is built to DIN 2184-1.