Sutton T701 7/16 x 20 TPI Spiral Flute Tap R40 - PM-HSSE V3 - Steam Oxide - DIN 2184-1
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The Sutton T701 is a spiral flute tap (R40 spiral, N designation) for UNF threads, made from powder metallurgy, vanadium grade high speed steel (PM-HSSE V3) with a blue steam-oxide finish. This listing covers 7 sizes from #6 x 40 TPI to 7/16 x 20 TPI.
The 40° right-hand spiral flute suits blind holes in long chipping materials: the high helix angle curls the chips and transports them back out of the hole. The tap cuts on reversal, so the flutes have rake on both front and back faces. The N designation is for normal, general purpose materials, with a normal rake angle and normal thread relief. The chamfer is Form C (2.5 x P), generally for blind holes.
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.
- Blind holes.
- Suitable for machine operations.
- Depths up to approx. 2.5 x d1.
Design features
- Powder metallurgy, vanadium grade high speed steel (PM-HSSE V3). The very fine and uniform grain structure allows high hardness while keeping good toughness, for materials up to 40 HRC and difficult-to-machine materials such as stainless steels.
- Blue steam-oxide finish for ferrous metals; it helps prevent chip build-up on the cutting edges and carries lubricant well.
- 3 flutes.
- 40° right-hand spiral flute.
- Form C chamfer, 2.5 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 |
|---|---|---|---|---|---|---|---|---|---|---|
| T701 0351 | #6 x 40 TPI | 40 | 2.9 | 56 | 6 | 20 | 4 | 3 | 6 | 3 |
| T701 0417 | #8 x 36 TPI | 36 | 3.5 | 63 | 7 | 21 | 4.5 | 3.4 | 6 | 3 |
| T701 0483 | #10 x 32 TPI | 32 | 4.1 | 70 | 8 | 25 | 6 | 4.9 | 8 | 3 |
| T701 0635 | 1/4 x 28 TPI | 28 | 5.5 | 80 | 10 | 30 | 7 | 5.5 | 8 | 3 |
| T701 0794 | 5/16 x 24 TPI | 24 | 6.9 | 90 | 13 | 35 | 8 | 6.2 | 9 | 3 |
| T701 0953 | 3/8 x 24 TPI | 24 | 8.5 | 100 | 15 | 35 | 10 | 8 | 11 | 3 |
| T701 1111 | 7/16 x 20 TPI | 20 | 9.8 | 100 | 15 | - | 8 | 6.2 | 8 | 3 |
Key specifications
| Specification | Detail |
|---|---|
| Catalogue code | T701 |
| Type | Spiral flute tap |
| Thread series | UNF |
| Material | PM-HSSE V3 |
| Finish | Steam Oxide |
| Designation | N |
| Spiral | R40 (40° right-hand) |
| Chamfer | Form C / 2.5 x P |
| Thread tolerance | 2B |
| Standard | DIN 2184-1 |
| Flutes | 3 |
| Sizes in this listing | 7 sizes, #6 x 40 TPI to 7/16 x 20 TPI |
Related products
Related Sutton taps: T696 UNF Spiral Flute Tap R50 VA PM - PM-HSSE V3 - TiCN - DIN 2184-1, T692 UNF Spiral Flute Tap R50 Black Magic - PM-HSSE V3 - Hardlube - DIN 2184-1, T443 UNF Spiral Flute Tap Bottoming - HSSE - TiN - ISO 529, T442 UNF Spiral Flute Tap Bottoming - HSSE - Bright - ISO 529, T277 UNF Spiral Flute Tap R45 VA DH - HSSE - TiCN - DIN 2184-1.
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Sutton T701 UNF Spiral Flute Tap R40 - PM-HSSE V3 - Steam Oxide - DIN 2184-1: 20 / 7/16
SKU: A0016064 | Model: T7011111
TPI 20, Diameter (inch) 7/16. Features
The Sutton T701 is a spiral flute tap (R40 spiral, N designation) for UNF threads, made from powder metallurgy, vanadium grade high speed steel (PM-HSSE V3) with a blue steam-oxide finish. This listing covers 7 sizes from #6 x 40 TPI to 7/16 x 20 TPI.
The 40° right-hand spiral flute suits blind holes in long chipping materials: the high helix angle curls the chips and transports them back out of the hole. The tap cuts on reversal, so the flutes have rake on both front and back faces. The N designation is for normal, general purpose materials, with a normal rake angle and normal thread relief. The chamfer is Form C (2.5 x P), generally for blind holes.
The thread tolerance is 2B. The tap is built to DIN 2184-1.