HC-SP Whitworth Threads | Spiral Fluted Taps for High Carbon Steels | YAMAWA
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YAM-HC-SP Whitworth Threads
Product Features
- The HC+SP/HC-SP is a spiral flute tap for high carbon steel such as S55C and is suitable for tapping of medium and high hardness materials up to 30 HRC.
Tapping conditions
The HC+SP/HC-SP is best suited for tapping of high carbon steel, alloy tool steel and refined steel.
| Workpiece Material | Cutting Speed（m/min） |  |
| S45C〜 High carbon steel |
10〜20 | |
| SKC、SKD Alloy tool steel |
5〜10 | |
| Thermal refining steel 25〜35HRC |
5〜10 |
Product chart (tensile strength)
pecification
Tapping Speeds depending on Materials
- Product Name and Size.
| HC＋SP | ～M6 |
| HC－SP | M8～, all W |
Segment：1C
|
Size |
Class |
Code |
Chamfer |
L (mm) |
ℓ (mm) |
ℓn (mm) |
ℓs (mm) |
Ds (mm) |
K (mm) |
ℓk (mm) |
No. of flutes |
TYPE |
|
For Whitworth Threads |
||||||||||||
|
1/4W20 |
P2 |
SCMQW04N |
2.5P |
62 |
15 |
26 |
33 |
6 |
4.5 |
7 |
3 |
1 |
|
5/16W18 |
P2 |
SCMQW05O |
2.5P |
70 |
19 |
- |
36 |
6.2 |
5 |
8 |
3 |
2 |
|
3/8W16 |
P2 |
SCMQW06P |
2.5P |
75 |
23 |
- |
38 |
7 |
5.5 |
8 |
3 |
2 |
|
1/2W12 |
P3 |
SCMRW08S |
2.5P |
88 |
26 |
- |
45 |
10.5 |
8 |
11 |
3 |
2 |
|
5/8W11 |
P3 |
SCMRW10U |
2.5P |
95 |
26 |
- |
48 |
12.5 |
10 |
13 |
3 |
2 |
|
3/4W10 |
P3 |
SCMRW12V |
2.5P |
105 |
33 |
- |
50 |
15 |
12 |
15 |
4 |
4 |
|
7/8W9 |
P3 |
SCMRW14W |
2.5P |
115 |
33 |
- |
55 |
17 |
13 |
16 |
4 |
4 |
|
1 W8 |
P3 |
SCMRW16X |
2.5P |
125 |
39 |
- |
58 |
19 |
15 |
18 |
4 |
4 |
| แบรนด์สินค้า | YAMAWA |
|---|
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