Sutton T905 1/2 x 12 TPI Straight Flute Tap Set - HSS - Bright - ISO 529
Available
The Sutton T905 is a three-piece straight flute tap set (N designation) for BSW threads, made from high speed steel (HSS) with a bright finish. This listing covers 15 sizes from 3/32 x 48 TPI to 1 x 8 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 thread tolerance is Z3 Medium. The set is built to ISO 529.
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.
- 3 to 4 flutes, depending on size.
- Three taps per set: taper (Form A chamfer), intermediate (Form D) and bottoming (Form E).
- Thread tolerance Z3 Medium.
- The N designation is for normal, general purpose materials, with a normal rake angle and normal thread relief.
- ISO 529 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 |
|---|---|---|---|---|---|---|---|---|---|---|
| T905 0238 | 3/32 x 48 TPI | 48 | 1.85 | 45 | 10 | - | 2.8 | 2.24 | 5 | 3 |
| T905 0318 | 1/8 x 40 TPI | 40 | 2.55 | 48 | 15 | 15 | 3.15 | 2.5 | 5 | 3 |
| T905 0397 | 5/32 x 32 TPI | 32 | 3.2 | 53 | 17 | 17 | 4 | 3.15 | 6 | 3 |
| T905 0476 | 3/16 x 24 TPI | 24 | 3.7 | 58 | 16 | 22 | 5 | 4 | 7 | 3 |
| T905 0556 | 7/32 x 24 TPI | 24 | 4.5 | 62 | 17 | 23 | 5.6 | 4.5 | 7 | 3 |
| T905 0635 | 1/4 x 20 TPI | 20 | 5.1 | 66 | 19 | 25 | 6.3 | 5 | 8 | 3 |
| T905 0794 | 5/16 x 18 TPI | 18 | 6.5 | 72 | 22 | 30 | 8 | 6.3 | 9 | 4 |
| T905 0953 | 3/8 x 16 TPI | 16 | 7.9 | 80 | 24 | 33 | 10 | 8 | 11 | 4 |
| T905 1111 | 7/16 x 14 TPI | 14 | 9.3 | 85 | 25 | - | 8 | 6.3 | 9 | 4 |
| T905 1270 | 1/2 x 12 TPI | 12 | 10.5 | 89 | 29 | - | 9 | 7.1 | 10 | 4 |
| T905 1429 | 9/16 x 12 TPI | 12 | 12.1 | 95 | 30 | - | 11.2 | 9 | 12 | 4 |
| T905 1588 | 5/8 x 11 TPI | 11 | 13.5 | 102 | 32 | - | 12.5 | 10 | 13 | 4 |
| T905 1905 | 3/4 x 10 TPI | 10 | 16.25 | 112 | 37 | - | 14 | 11.2 | 14 | 4 |
| T905 2223 | 7/8 x 9 TPI | 9 | 19.25 | 118 | 38 | - | 16 | 12.5 | 16 | 4 |
| T905 2540 | 1 x 8 TPI | 8 | 22 | 130 | 45 | - | 18 | 14 | 18 | 4 |
Key specifications
| Specification | Detail |
|---|---|
| Catalogue code | T905 |
| Type | Three-piece straight flute tap set |
| Thread series | BSW |
| Material | HSS |
| Finish | Bright |
| Designation | N |
| Set contents | Taper (Form A), intermediate (Form D) and bottoming (Form E) taps |
| Thread tolerance | Z3 Medium |
| Standard | ISO 529 |
| Flutes | 3 to 4 |
| Sizes in this listing | 15 sizes, 3/32 x 48 TPI to 1 x 8 TPI |
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Sutton T905 BSW Straight Flute Tap Set - HSS - Bright - ISO 529: 1/2-12 UNF
SKU: A0016167 | Model: T9051270
Tap Size 1/2-12 UNF. Features
The Sutton T905 is a three-piece straight flute tap set (N designation) for BSW threads, made from high speed steel (HSS) with a bright finish. This listing covers 15 sizes from 3/32 x 48 TPI to 1 x 8 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 thread tolerance is Z3 Medium. The set is built to ISO 529.