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MHSL-J (Metric Threads) | Spiral Fluted Taps for Carbon Steels of Medium Hardness, Through Hole Use (with LH Spiral Flutes) JIS | YAMAWA

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พร้อมส่ง
SKU
YAM-MHSL-J Metric Threads

Product Features

  • Ideal for forged products and tempered S48C to S55C materials from 25 to 35 HRC.
  • Produced from HSS-Co materials with a special coating for enhanced wear resistance and to improve long tool life.
  • The original left hand spiral flute shape is used to produce a smooth chip discharge and increase performance in the medium tapping speed range. Also, the MHSL improves the internal threads surface finish.

   

Tapping Data

Tapping Conditions [M12×1.25]

Workpiece Material S53C (forged) / Hub bearing
Bored Hole Size φ10.8
Tapping Length 12mm through hole
Tapping Speed 30m/min
Machine Horizontal machining center(fully synchronized feed)
Tapping Fluid Water soluble cutting fluid

Tapping Data

Tapping Conditions [M12×1.25]

Workpiece Material S53C(25HRC)
Tapping Length 13mm
Tapping Speed 30m/min
Machine Machining center
Tapping Fluid Water soluble cutting fluid

Tapping examples on the market

MHSL-J Workpiece Material Tapping Condition / Tapping Result Remarks
Nominal Size Material Symbol
(Hardness)
Bored Hole Size
(mm)
Tapping Length
(mm)*
Machine Cutting Speed
(m/min)
Feed
Mechanism
Cutting
Oil
Lifetime
(Holes or Pieces)
M6×1 S35C

5.1

12( 2D)

Horizontal
MC

7.5

Synchronized Non-water
soluble
10,000 Bad surface finish
* Workpiece name: Shafts
M8×1.25 S45C 6.8 8( 1D) Vertical
MC
40 Synchronized Water soluble 9,120 Replaced after tapping 5,200 holes
* Workpiece name: Shafts
M8×1.25 S55C (25HRC) 6.85 12( 1.5D) Vertical
MC
30 Synchronized Water soluble 2,160 Unstable tool life
* Workpiece name: Clutch parts
M10×1.25 S45C (23HRC) 8.8 20( 2D) Vertical
MC
8 Synchronized Water soluble 2,450 Replaced after tapping 1,600 holes
* Workpiece name: Arms
M12×1.75 S55C (27HRC) 10.4 12( 1D) Vertical
MC
19 Synchronized Water soluble 2,840 Unstable tool life
* Workpiece name: Hub bearings
M14×1.5 S53C (25HRC) 12.6 14( 1D) Vertical
MC
32 Synchronized Water soluble 4,430 Replaced due to excessive torque after tapping 3,000 holes
* Workpiece name: Hub bearings
M14×1.5 S55C (23HRC) 12.6 14( 1D) Vertical
MC
22 Synchronized Water soluble 2,700 Replaced after tapping 2,000 holes
* Workpiece name: Hub bearings
  • (D) indicates the ratio of the tapping length to the outside diameter.

Examples of machined parts

Excellent durability for tapping through holes in medium hard steels for such as hub bearings of bicycles.               

 

 

MHSL-J  (Metric Threads) | Spiral Fluted Taps for Carbon Steels of Medium Hardness, Through Hole Use (with LH Spiral Flutes) JIS | YAMAWA
MHSL-J  (Metric Threads) | Spiral Fluted Taps for Carbon Steels of Medium Hardness, Through Hole Use (with LH Spiral Flutes) JIS | YAMAWA

Specification

         

Tapping Speeds depending on Materials

       

                                                                                             25〜35HRC

 

Segment:1T

Size

Class

Code

Chamfer

L

(mm)

(mm)

n

(mm)

s

(mm)

Ds

(mm)

K

(mm)

k

(mm)

No. of flutes

TYPE

For Metric Threads

M6×1

P3

MHSLR6.0M5

5P

62

15

26

33

6

4.5

7

3

1

M8×1.25

P4

MHSLS8.0N5

5P

70

19

-

36

6.2

5

8

3

2

M10×1.5

P4

MHSLS010O5

5P

75

23

-

38

7

5.5

8

3

2

M10×1.25

P4

MHSLS010N5

5P

75

23

-

38

7

5.5

8

3

2

M12×1.75

P5

MHSLT012P5

5P

82

26

-

42

8.5

6.5

9

4

2

M12×1.5

P5

MHSLT012O5

5P

82

26

-

42

8.5

6.5

9

4

2

M12×1.25

P5

MHSLT012N7

7P

82

26

-

42

8.5

6.5

9

4

2

M14×1.5

P5

MHSLT014O7

7P

88

26

-

45

10.5

8

11

4

2

M16×1.5

P5

MHSLT016O7

7P

95

26

-

48

12.5

10

13

4

2

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คุณกำลังรีวิว:MHSL-J (Metric Threads) | Spiral Fluted Taps for Carbon Steels of Medium Hardness, Through Hole Use (with LH Spiral Flutes) JIS | YAMAWA