Sutton T477 1 x 11 TPI Straight Flute Tap Pipe Bottoming - HSS - Bright - ISO 2284
Available
The Sutton T477 is a straight flute tap (bottoming chamfer) for BSPPL (Rp) threads, made from high speed steel (HSS) with a bright finish. This listing covers 9 sizes from 1/8 x 28 TPI to 2 x 11 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 tap has a bottoming chamfer (Form E, 1.5 to 2 threads on the lead), for blind holes with very short thread run-out.
The tap is built to ISO 2284.
Where this product is used
- Through and blind holes.
Design features
- High speed steel (HSS). Standard tool material for most common applications.
- Bright finish for general purpose applications.
- 4 flutes.
- Bottoming chamfer (Form E), for blind holes with very short thread run-out.
- 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 |
|---|---|---|---|---|---|---|---|---|---|
| T477 0973 | 1/8 x 28 TPI | 28 | 8.6 | 59 | 15 | 8 | 6.3 | 9 | 4 |
| T477 1316 | 1/4 x 19 TPI | 19 | 11.5 | 67 | 19 | 10 | 8 | 11 | 4 |
| T477 1666 | 3/8 x 19 TPI | 19 | 15 | 75 | 21 | 12.5 | 10 | 13 | 4 |
| T477 2096 | 1/2 x 14 TPI | 14 | 18.5 | 87 | 26 | 16 | 12.5 | 16 | 4 |
| T477 2644 | 3/4 x 14 TPI | 14 | 24 | 96 | 28 | 20 | 16 | 20 | 4 |
| T477 3325 | 1 x 11 TPI | 11 | 30.2 | 109 | 33 | 25 | 20 | 24 | 4 |
| T477 4191 | 1-1/4 x 11 TPI | 11 | 39 | 119 | 36 | 31.5 | 25 | 28 | 4 |
| T477 4780 | 1-1/2 x 11 TPI | 11 | 45 | 125 | 37 | 35.5 | 28 | 31 | 4 |
| T477 5961 | 2 x 11 TPI | 11 | 56.4 | 140 | 41 | 40 | 31.5 | 34 | 4 |
Key specifications
| Specification | Detail |
|---|---|
| Catalogue code | T477 |
| Type | Straight flute tap |
| Thread series | BSPPL (Rp) |
| Material | HSS |
| Finish | Bright |
| Chamfer | Bottoming (Form E) |
| Standard | ISO 2284 |
| Flutes | 4 |
| Sizes in this listing | 9 sizes, 1/8 x 28 TPI to 2 x 11 TPI |
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11 / 1
Model Number: T4773325
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11 / 1 1/4
Model Number: T4774191
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11 / 1 1/2
Model Number: T4774780
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11 / 2
Model Number: T4775961
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14 / 1/2
Model Number: T4772096
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14 / 3/4
Model Number: T4772644
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19 / 1/4
Model Number: T4771316
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19 / 3/8
Model Number: T4771666
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28 / 1/8
Model Number: T4770973
