Machine tap with straight flutes



Thread UNC
Unified coarse thread

Profile sketch
60°

Type N
Tap for steels up to 800 N/mm2

Tap material
Super high speed steel

Tap standard
~ DIN 371

Thread tolerance
2B

Chamfer C
Length 2-3 pitch

Hole type
Through hole (thread length L < 1,5xd1)

Hole type
Blind hole (thread length < 1,5 d1, pilot drilling depth ≥ L+d1)
Catalogue number: 1004
Machine tap with straight flutes, unified national coarse thread, DIN 371, suitable for structural steels, free cutting steels, short chipping copper alloys, grey cast iron, aluminium alloys with Si>10%.
Download product data sheetSelect product model
Use
Machined material | Hole type | Cutting speed | Lubrication | Use |
---|---|---|---|---|
Aluminium alloys si content > 10% | through hole (thread length L < 1,5xd1) | 12-15 |
E
Lubrication
Emulsion
|
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Possible use
|
Copper alloys (short chipping) | through hole (thread length L < 1,5xd1) | 10-15 |
O/E
Lubrication
Cutting Oil/Emulsion
|
![]() Use
Recommended use
|
Copper alloys (short chipping) | blind hole (thread length < 1,5 d1, pilot drilling depth ≥ L+d1) | 10-15 |
O/E
Lubrication
Cutting Oil/Emulsion
|
![]() Use
Recommended use
|
Free cutting steels up to 800 N/mm2 | through hole (thread length L < 1,5xd1) | 8-10 |
O/E
Lubrication
Cutting Oil/Emulsion
|
![]() Use
Possible use
|
Free cutting steels up to 800 N/mm2 | blind hole (thread length < 1,5 d1, pilot drilling depth ≥ L+d1) | 8-10 |
O/E
Lubrication
Cutting Oil/Emulsion
|
![]() Use
Possible use
|
Grey cast iron | through hole (thread length L > 1,5xd1) | 7-10 |
E
Lubrication
Emulsion
|
![]() Use
Possible use
|
Grey cast iron | blind hole (thread length L < 1,5xd1) | 7-10 |
E
Lubrication
Emulsion
|
![]() Use
Possible use
|
Grey cast iron | through hole (thread length L < 1,5xd1) | 7-10 |
E
Lubrication
Emulsion
|
![]() Use
Possible use
|
Grey cast iron | blind hole (thread length L < 2xd1) | 7-10 |
E
Lubrication
Emulsion
|
![]() Use
Possible use
|
Grey cast iron | blind hole (thread length < 1,5 d1, pilot drilling depth ≥ L+d1) | 7-10 |
E
Lubrication
Emulsion
|
![]() Use
Possible use
|
Grey cast iron | blind hole (thread length L < 2,5xd1) | 7-10 |
E
Lubrication
Emulsion
|
![]() Use
Possible use
|
Structural steels up to 500 N/mm2 | blind hole (thread length < 1,5 d1, pilot drilling depth ≥ L+d1) | 4-6 |
O/E
Lubrication
Cutting Oil/Emulsion
|
![]() Use
Possible use
|
Structural steels up to 500 N/mm2 | through hole (thread length L < 1,5xd1) | 4-6 |
O/E
Lubrication
Cutting Oil/Emulsion
|
![]() Use
Possible use
|