TMA Supplies of fluteless machine taps for thread forming from Taiwan.
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FLUTELESS MACHINE TAPS FOR THREAD ROLLING MACHINES

 


 

Applications of Fluteless Machine Taps

Fluteless Machine Taps (chipless taps, cold forming taps) are recommended to be used when producing threads by plastic deformation (rolling) in parts made of non-ferrous and ferrous metals with high plasticity. These materials include: aluminum and its alloys, copper, brass, bronze with a high copper content, zinc and its alloys, low-carbon and high-plastic stainless and heat-resistant steels. Compared to cutting taps, forming taps have greater strength, provide accurate threads with low surface roughness, and increase thread strength (up to 20%).

Their main difference from cutting taps is the absence of longitudinal grooves that form cutting edges. In addition, the champfer on these taps is significantly shorter. At the end of the threaded part of the fluteless taps, there are small symmetrically located coolant grooves.

Fluteless taps are much stronger than cutting taps, their breakages are very rare and there are almost no defects of parts due to taps breakdowns. Thanks to the long threaded part, the tap can be re-sharpened several times. Thus, the service life of the fluteless tap is much longer than regular tap.

High productivity in threading is the main advantage of fluteless machine taps. They are used for thread forming not only in through holes, but also in blind holes. The thread rolling profile is formed by pressing the tool into the workpiece material and extruding part of the material into the tool cavity.


Outlook & Drawing of Fluteless Machine Taps for Steel

Fluteless Machine Taps for Steelvanadium-containing high-speed steel with Homo Processing
taps for threads smaller than M6


Fluteless Machine Taps for Steelvanadium-containing high-speed steel with nitride coating
taps for threads M6 and more





G - Chamfer Length: 2 threads for blind holes (B) or 4 threads for through holes (P)
H - lubricating groove

Fluteless Machine Taps for Steel


Metric thread
Спецификация A
Total Length
B
Thread Length
C
Shank Dia.
E
square length
F
square
number of facets
size tolerance size tolerance size tolerance size tolerance
M 2 40 ±0.7 12 ±1 3 0
-0.04
5 2.5 0
-0.1
4
   2.5 44  〞 14  〞  〞  〞  〞  〞  〞  〞
   2.6  〞  〞  〞  〞  〞  〞  〞  〞  〞  〞
M 3 46  〞 9  〞 4  〞 6 3.2  〞 4
   3.5 48  〞  〞  〞  〞  〞  〞  〞  〞  〞
   4 52  〞 10  〞 5  〞 7 4  〞  〞
   4.5 55  〞  〞  〞  〞  〞  〞  〞  〞  〞
   5 60  〞 11  〞 5.5  〞  〞 4.5  〞  〞
   5.5 60  〞  〞  〞  〞  〞  〞  〞  〞  〞
   6 62  〞 12  〞 6  〞  〞  〞  〞  〞
   7 65  〞 16  〞 6.2  〞 8 5  〞 6
   8 70 ±1.2 18 ±1.4  〞  〞  〞  〞  〞  〞
   9 72  〞  〞  〞 7  〞  〞 5.5  〞  〞
  10 75  〞 19  〞  〞  〞  〞  〞  〞 8
  11 80  〞 23  〞 8  〞 9 6  〞  〞
  12 82  〞  〞  〞 8.5  〞  〞 6.5  〞  〞
14 88  〞 25  〞 10.5  〞 11 8  〞  〞
  15 90  〞  〞  〞  〞  〞  〞  〞   〞  〞
  16 95  〞 27  〞 12.5 0
-0.05
13 10 0
-0.15
 〞
All table dimensions in mm.


American Thread
Спецификация A
Total Length
B
Thread Length
C
Shank Dia.
E
square length
F
square
number of facets
size tolerance size tolerance size tolerance size tolerance
No .2 42 ±0.7 13 ±1 3 0
-0.04
5 2.5 0
-0.1
4
No .3 44  〞 14  〞  〞  〞  〞  〞  〞  〞
No .4  〞  〞 15  〞  〞  〞  〞  〞  〞  〞
No .5 46  〞 9  〞 4  〞 6 3.2  〞  〞
    6 48  〞  〞  〞  〞  〞  〞  〞  〞  〞
    8 52  〞 10  〞 5  〞 7 4  〞  〞
   10 60  〞 11  〞 5.5  〞  〞 4.5  〞  〞
   12  〞  〞  〞  〞  〞  〞  〞  〞  〞  〞
U 1 /  4 62  〞 14 ±14 6  〞  〞  〞  〞  〞
  5 / 16 70 ±1.2 18  〞 6.1  〞 8 5  〞 6
  3 /  8 75  〞 21  〞 7  〞  〞 5.5  〞 8
  7 / 16 80  〞 23  〞 8  〞 9 6  〞  〞
  1 /  2 85  〞 25  〞 9  〞 10 7  〞  〞
  9 / 16 90  〞  〞  〞 10.5  〞 11 8  〞  〞
  5 /  8 95  〞 27  〞 12 0
-0.05
12 9  〞  〞
All table dimensions in mm.


Ordering of Fluteless Machine Taps for Steel

Metric thread
RG NO. Thread Size TAP Limit Chamfer (G) Total Length (A) Thread Length (B) Shank Dia. (C)
1000021134 M2 X 0.4 RH5 P 40 12 3
1000021135 M2 X 0.4 RH5 B 40 12 3
1000021182 M2.6 X 0.45 RH5 P 44 14 3
1000021183 M2.6 X 0.45 RH5 B 44 14 3
1000125816 M3 X 0.5 RH6 P 46 9 4
1000125817 M3 X 0.5 RH6 B 46 9 4
1000125820 M4 X 0.7 RH7 P 52 10 5
1000125821 M4 X 0.7 RH7 B 52 10 5
1000125828 M5 X 0.8 RH7 P 60 11 5.5
1000125829 M5 X 0.8 RH7 B 60 11 5.5
1000125836 M6 X 1 RH8 P 62 12 6
1000125837 M6 X 1 RH8 B 62 12 6
1000012476 M8 X 1.25 RH7 P 70 18 6.2
1000012477 M8 X 1.25 RH7 B 70 18 6.2
1000012478 M8 X 1.25 RH8 P 70 18 6.2
1000012479 M8 X 1.25 RH8 B 70 18 6.2
1000125842 M8 X 1 RH8 P 70 18 6.2
1000125843 M8 X 1 RH8 B 70 18 6.2
1000012508 M10 X 1.5 RH7 P 75 19 7
1000012509 M10 X 1.5 RH7 B 75 19 7
1000125854 M10 X 1.5 RH8 P 75 19 7
1000125855 M10 X 1.5 RH8 B 75 19 7
1000012522 M10 X 1.25 RH7 P 75 19 7
1000012523 M10 X 1.25 RH7 B 75 19 7
1000012524 M10 X 1.25 RH8 P 75 19 7
1000012525 M10 X 1.25 RH8 B 75 19 7
1000128843 M12 X 1.75 RH9 P 82 23 8.5
1000128844 M12 X 1.75 RH9 B 82 23 8.5
1000128841 M12 X 1.5 RH8 P 82 23 8.5
1000128842 M12 X 1.5 RH8 B 82 23 8.5
1000012576 M12 X 1.25 RH7 P 82 23 8.5
1000012577 M12 X 1.25 RH7 B 82 23 8.5
1000012594 M12 X 1 RH7 P 82 23 8.5
1000012595 M12 X 1 RH7 B 82 23 8.5
1000012612 M14 X 2 RH10 P 88 25 10.5
1000012613 M14 X 2 RH10 B 88 25 10.5
1000012626 M14 X 1.5 RH9 P 88 25 10.5
1000012627 M14 X 1.5 RH9 B 88 25 10.5
1000012640 M16 X 2 RH10 P 95 27 12.5
1000012641 M16 X 2 RH10 B 95 27 12.5
1000012654 M16 X 1.5 RH9 P 95 27 12.5
1000012655 M16 X 1.5 RH9 B 95 27 12.5
1000012668 M18 X 2.5 RH11 P 100 29 14
1000012669 M18 X 2.5 RH11 B 100 29 14
1000012684 M18 X 1.5 RH10 P 100 29 14
1000012685 M18 X 1.5 RH10 B 100 29 14
1000012686 M20 X 2.5 RH11 P 105 30 15
1000012687 M20 X 2.5 RH11 B 105 30 15
1000012688 M20 X 1.5 RH10 P 105 30 15
1000012689 M20 X 1.5 RH10 B 105 30 15
All table dimensions in mm.


U-Type thread
RG NO. Thread Size TAP Limit Chamfer (G) Total Length (A) Thread Length (B) Shank Dia. (C)
1000125910 NO.4 - 40 UNC RH6 P 44 15 3
1000125911 NO.4 - 40 UNC RH6 B 44 15 3
1008307092 NO.6 - 32 UNC RH7 P 48 9 4
1008307093 NO.6 - 32 UNC RH7 B 48 9 4
1008307108 NO.8 - 32 UNC RH7 P 52 10 5
1008307109 NO.8 - 32 UNC RH7 B 52 10 5
1008307124 NO.10 - 24 UNC RH8 P 60 11 5.5
1008307125 NO.10 - 24 UNC RH8 B 60 11 5.5
1000125928 NO.10 - 32 UNF RH8 P 60 11 5.5
1000125929 NO.10 - 32 UNF RH8 B 60 11 5.5
1008307140 NO.12 - 24 UNC RH8 P 60 11 5.5
1008307141 NO.12 - 24 UNC RH8 B 60 11 5.5
1008307156 1/4 - 20 UNC RH8 P 62 14 6
1008307157 1/4 - 20 UNC RH8 B 62 14 6
1000125938 1/4 - 28 UNF RH8 P 62 14 6
1000125939 1/4 - 28 UNF RH8 B 62 14 6
1000125944 5/16 - 24 UNF RH8 P 70 18 6.1
1000125945 5/16 - 24 UNF RH8 B 70 18 6.1
1000129160 5/16 - 18 UNC RH8 P 70 18 6.1
1000129161 5/16 - 18 UNC RH8 B 70 18 6.1
1000129164 3/8 - 16 UNC RH8 P 75 21 7
1000129165 3/8 - 16 UNC RH8 B 75 21 7
1000125948 3/8 - 16 UNC RH9 P 75 21 7
1000125949 3/8 - 16 UNC RH9 B 75 21 7
1000125950 3/8 - 24 UNF RH8 P 75 21 7
1000125951 3/8 - 24 UNF RH8 B 75 21 7
All table dimensions in mm.


W-Type thread
RG NO. Thread Size TAP Limit Chamfer (G) Total Length (L) Thread Length (B) Shank Dia. (C)
125970 W1/8 - 40 RH6 P 46 9 4
125971 W1/8 - 40 RH6 B 46 9 4
125972 W5/32 - 32 RH7 P 52 10 5
125973 W5/32 - 32 RH7 B 52 10 5
125974 W3/16 - 24 RH7 P 60 11 5.5
125975 W3/16 - 24 RH7 B 60 11 5.5
125976 W1/4 - 20 RH8 P 62 14 6
125977 W1/4 - 20 RH8 B 62 14 6
129850 W1/4 - 20 RH7 P 62 14 6
129851 W1/4 - 20 RH7 B 62 14 6
129852 W5/16 - 18 RH8 P 70 18 6.1
129853 W5/16 - 18 RH8 B 70 18 6.1
129854 W3/8 - 16 RH8 P 75 21 7
129855 W3/8 - 16 RH8 B 75 21 7
All table dimensions in mm.



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