Sutton T308 1 x 11.5 TPI Straight Flute Tap UNI - HSSE - Bright - DIN 2184-1
Available
The Sutton T308 is a straight flute tap (UNI designation) for NPT threads, made from premium grade high speed steel (HSSE) with a bright finish. This listing covers 6 sizes from 1/8 x 27 TPI to 1 x 11.5 TPI.
Straight flutes suit through or blind holes, but they hold only a small amount of chips and do not transport them axially, so deep holes are best avoided except in short chipping materials. The UNI designation is for normal, general purpose materials, with a normal rake angle and high thread relief. The chamfer is Form C (2.5 x P), generally for blind holes.
The thread tolerance is ANSI B1.20.1. The tap is built to DIN 2184-1.
Where this product is used
- Universal use.
- Suitable for materials up to 1000 N/mm2.
- Through or blind holes.
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.
- 4 to 5 flutes, depending on size.
- Form C chamfer, 2.5 x P.
- Thread tolerance ANSI B1.20.1.
- The UNI designation is for normal, general purpose materials, with a normal rake angle and high 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) | d2 shank (mm) | sq square (mm) | l4 square length (mm) | Flutes |
|---|---|---|---|---|---|---|---|---|---|
| T308 1029 | 1/8 x 27 TPI | 27 | 8.2 | 90 | 20 | 7 | 5.5 | 8 | 4 |
| T308 1372 | 1/4 x 18 TPI | 18 | 10.8 | 100 | 22 | 11 | 9 | 12 | 4 |
| T308 1716 | 3/8 x 18 TPI | 18 | 14 | 100 | 22 | 12 | 9 | 12 | 4 |
| T308 2134 | 1/2 x 14 TPI | 14 | 17.5 | 125 | 25 | 16 | 12 | 15 | 4 |
| T308 2667 | 3/4 x 14 TPI | 14 | 23 | 140 | 28 | 20 | 16 | 19 | 4 |
| T308 3340 | 1 x 11.5 TPI | 11.5 | 28.5 | 160 | 30 | 25 | 20 | 23 | 5 |
Key specifications
| Specification | Detail |
|---|---|
| Catalogue code | T308 |
| Type | Straight flute tap |
| Thread series | NPT |
| Material | HSSE |
| Finish | Bright |
| Designation | UNI |
| Chamfer | Form C / 2.5 x P |
| Thread tolerance | ANSI B1.20.1 |
| Standard | DIN 2184-1 |
| Flutes | 4 to 5 |
| Sizes in this listing | 6 sizes, 1/8 x 27 TPI to 1 x 11.5 TPI |
Related products
Related Sutton taps: T308 1-1/4 x 11.5 TPI NPT Straight Flute Tap UNI - HSSE - Bright - DIN 2184-1.
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Sutton T308 NPT Straight Flute Tap UNI - HSSE - Bright - DIN 2184-1: 12 / 1
SKU: A0014407 | Model: T3083340
TPI 12, Diameter (inch) 1. Features
The Sutton T308 is a straight flute tap (UNI designation) for NPT threads, made from premium grade high speed steel (HSSE) with a bright finish. This listing covers 6 sizes from 1/8 x 27 TPI to 1 x 11.5 TPI.
Straight flutes suit through or blind holes, but they hold only a small amount of chips and do not transport them axially, so deep holes are best avoided except in short chipping materials. The UNI designation is for normal, general purpose materials, with a normal rake angle and high thread relief. The chamfer is Form C (2.5 x P), generally for blind holes.
The thread tolerance is ANSI B1.20.1. The tap is built to DIN 2184-1.