Sutton T909 1 x 11 TPI Straight Flute Tap Set - HSS - Bright - ISO 2284
Available
The Sutton T909 is a three-piece straight flute tap set (N designation) for BSPF (G) threads, made from high speed steel (HSS) with a bright finish. This listing covers 7 sizes from 1/8 x 28 TPI to 1 x 11 TPI.
Each set contains three taps in the same thread size: a taper tap, an intermediate tap and a bottoming tap. 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 N designation is for normal, general purpose materials, with a normal rake angle and normal thread relief. The taper tap has a Form A chamfer (6 to 8 threads on the lead), for short through holes. The intermediate tap has a Form D chamfer (3.5 to 5 threads on the lead), generally for through holes. The bottoming tap has a Form E chamfer (1.5 to 2 threads on the lead), for blind holes with very short thread run-out.
The set is built to ISO 2284.
Where this product is used
- General purpose use.
- Suitable for materials up to 1000 N/mm2.
- Through & blind holes.
- Suitable for both hand and machine operations.
- Depths up to approx. 1 x d1.
Design features
- High speed steel (HSS). Standard tool material for most common applications.
- Bright finish for general purpose applications.
- 4 flutes.
- Three taps per set: taper (Form A chamfer), intermediate (Form D) and bottoming (Form E).
- The N designation is for normal, general purpose materials, with a normal rake angle and normal thread relief.
- ISO 2284 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 |
|---|---|---|---|---|---|---|---|---|---|
| T909 0973 | 1/8 x 28 TPI | 28 | 8.8 | 59 | 15 | 8 | 6.3 | 9 | 4 |
| T909 1316 | 1/4 x 19 TPI | 19 | 11.8 | 67 | 19 | 10 | 8 | 11 | 4 |
| T909 1666 | 3/8 x 19 TPI | 19 | 15.3 | 75 | 21 | 12.5 | 10 | 13 | 4 |
| T909 2096 | 1/2 x 14 TPI | 14 | 19 | 87 | 26 | 16 | 12.5 | 16 | 4 |
| T909 2291 | 5/8 x 14 TPI | 14 | 21 | 91 | 26 | 18 | 14 | 18 | 4 |
| T909 2644 | 3/4 x 14 TPI | 14 | 24.5 | 96 | 28 | 20 | 16 | 20 | 4 |
| T909 3325 | 1 x 11 TPI | 11 | 31 | 109 | 33 | 25 | 20 | 24 | 4 |
Key specifications
| Specification | Detail |
|---|---|
| Catalogue code | T909 |
| Type | Three-piece straight flute tap set |
| Thread series | BSPF (G) |
| Material | HSS |
| Finish | Bright |
| Designation | N |
| Set contents | Taper (Form A), intermediate (Form D) and bottoming (Form E) taps |
| Standard | ISO 2284 |
| Flutes | 4 |
| Sizes in this listing | 7 sizes, 1/8 x 28 TPI to 1 x 11 TPI |
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Sutton T909 BSPF (G) Straight Flute Tap Set - HSS - Bright - ISO 2284: G 1-11 UNF
SKU: A0016199 | Model: T9093325
This is the tap size G 1-11 UNF option of the Sutton T909 BSPF (G) Straight Flute Tap Set - HSS - Bright - ISO 2284. Key details for this option: thread size 1 x 11 TPI, thread length 33mm, tapping drill size 31mm, square size 20mm, shank diameter 25mm.
Features
The Sutton T909 is a three-piece straight flute tap set (N designation) for BSPF (G) threads, made from high speed steel (HSS) with a bright finish. This listing covers 7 sizes from 1/8 x 28 TPI to 1 x 11 TPI.
Each set contains three taps in the same thread size: a taper tap, an intermediate tap and a bottoming tap. 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 N designation is for normal, general purpose materials, with a normal rake angle and normal thread relief. The taper tap has a Form A chamfer (6 to 8 threads on the lead), for short through holes. The intermediate tap has a Form D chamfer (3.5 to 5 threads on the lead), generally for through holes. The bottoming tap has a Form E chamfer (1.5 to 2 threads on the lead), for blind holes with very short thread run-out.
The set is built to ISO 2284.