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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THB 606.69
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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 |
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.
Specification
Tapping Speeds depending on Materials
25〜35HRC
Segment：1T
|
Size |
Class |
Code |
Chamfer |
L (mm) |
ℓ (mm) |
ℓn (mm) |
ℓs (mm) |
Ds (mm) |
K (mm) |
ℓk (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 |
| แบรนด์สินค้า | YAMAWA |
|---|
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