Sutton T686 M20 x 1.5 Spiral Flute Tap R50 Black Magic - PM-HSSE V3 - Hardlube - DIN 374
Available
The Sutton T686 is a spiral flute tap (R50 spiral, UNI designation, Black Magic range) for metric fine (MF) threads, made from powder metallurgy, vanadium grade high speed steel (PM-HSSE V3) with a Hardlube (TiAlN + WC/C) coating. This listing covers 17 sizes from M6 x 0.75 to M20 x 1.5.
The 50° 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 UNI designation is for normal, general purpose materials, with a normal rake angle and high thread relief, in powder metal high speed steel. The chamfer is Form C (2.5 x P), generally for blind holes.
The thread tolerance is 6HX. The tap is built to DIN 374: reduced shank with square drive.
Where this product is used
- Blind holes.
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.
- Hardlube (TiAlN + WC/C) coating for tapping hard-to-machine materials, with minimum quantity lubrication (MQL) or dry machining, longer tool life and higher cutting speeds.
- 3 to 4 flutes, depending on size.
- 50° right-hand spiral flute.
- Form C chamfer, 2.5 x P.
- Thread tolerance 6HX.
- The UNI designation is for normal, general purpose materials, with a normal rake angle and high thread relief, in powder metal high speed steel.
- DIN 374 construction, reduced shank with square drive.
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 | Pitch (mm) | Tapping drill (mm) | l1 overall (mm) | l2 thread (mm) | d2 shank (mm) | sq square (mm) | l4 square length (mm) | Flutes |
|---|---|---|---|---|---|---|---|---|---|
| T686 0604 | M6 x 0.75 | 0.75 | 5.3 | 80 | 8 | 4.5 | 3.4 | 6 | 3 |
| T686 0803 | M8 x 0.5 | 0.5 | 7.5 | 80 | 10 | 6 | 4.9 | 8 | 3 |
| T686 0805 | M8 x 1 | 1 | 7 | 90 | 8 | 6 | 4.9 | 8 | 3 |
| T686 1004 | M10 x 0.75 | 0.75 | 9.3 | 90 | 10 | 7 | 5.5 | 8 | 3 |
| T686 1005 | M10 x 1 | 1 | 9 | 90 | 10 | 7 | 5.5 | 8 | 3 |
| T686 1006 | M10 x 1.25 | 1.25 | 8.8 | 100 | 13 | 7 | 5.5 | 8 | 3 |
| T686 1205 | M12 x 1 | 1 | 11 | 100 | 14 | 9 | 7 | 10 | 3 |
| T686 1206 | M12 x 1.25 | 1.25 | 10.8 | 100 | 14 | 9 | 7 | 10 | 3 |
| T686 1207 | M12 x 1.5 | 1.5 | 10.5 | 100 | 14 | 9 | 7 | 10 | 3 |
| T686 1405 | M14 x 1 | 1 | 13 | 100 | 16 | 11 | 9 | 12 | 3 |
| T686 1406 | M14 x 1.25 | 1.25 | 12.8 | 100 | 16 | 11 | 9 | 12 | 3 |
| T686 1407 | M14 x 1.5 | 1.5 | 12.5 | 100 | 16 | 11 | 9 | 12 | 3 |
| T686 1605 | M16 x 1 | 1 | 15 | 100 | 16 | 12 | 9 | 12 | 3 |
| T686 1607 | M16 x 1.5 | 1.5 | 14.5 | 100 | 16 | 12 | 9 | 12 | 3 |
| T686 1805 | M18 x 1 | 1 | 17 | 110 | 20 | 14 | 11 | 14 | 4 |
| T686 2005 | M20 x 1 | 1 | 19 | 125 | 20 | 16 | 12 | 15 | 4 |
| T686 2007 | M20 x 1.5 | 1.5 | 18.5 | 125 | 20 | 16 | 12 | 15 | 4 |
Key specifications
| Specification | Detail |
|---|---|
| Catalogue code | T686 |
| Type | Spiral flute tap |
| Thread series | Metric fine (MF) |
| Material | PM-HSSE V3 |
| Finish | Hardlube |
| Designation | UNI |
| Spiral | R50 (50° right-hand) |
| Chamfer | Form C / 2.5 x P |
| Thread tolerance | 6HX |
| Standard | DIN 374 |
| Flutes | 3 to 4 |
| Sizes in this listing | 17 sizes, M6 x 0.75 to M20 x 1.5 |
Related products
Related Sutton taps: T411 Metric Fine Spiral Flute Tap Bottoming - HSSE - TiN - ISO 529, T409 Metric Fine Spiral Flute Tap Bottoming - HSSE - Bright - ISO 529, T252 Metric Fine Spiral Flute Tap R50 VA PM - PM-HSSE V3 - TiCN - DIN 374, T251 Metric Fine Spiral Flute Tap R45 VA DH - HSSE - TiCN - DIN 374, T249 Metric Fine Spiral Flute Tap R45 VA DH - HSSE - Steam Oxide - DIN 374.
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MF6 / 0.75
Model Number: T6860604
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MF8 / 0.5
Model Number: T6860803
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MF8 / 1
Model Number: T6860805
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MF10 / 0.75
Model Number: T6861004
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MF10 / 1
Model Number: T6861005
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MF10 / 1.25
Model Number: T6861006
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MF12 / 1
Model Number: T6861205
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MF12 / 1.25
Model Number: T6861206
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MF12 / 1.5
Model Number: T6861207
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MF14 / 1
Model Number: T6861405
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MF14 / 1.25
Model Number: T6861406
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MF14 / 1.5
Model Number: T6861407
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MF16 / 1
Model Number: T6861605
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MF16 / 1.5
Model Number: T6861607
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MF18 / 1
Model Number: T6861805
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MF20 / 1
Model Number: T6862005
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MF20 / 1.5
Model Number: T6862007
