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Manufacturer number:
Machine tap 1/4-20
Article no.: 133350 1/4-20
Article code:
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The spiral point evacuates the swarf in the cutting direction.
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- Thread type: UNC
- Flank angle: 60
- Tool material: HSS E
- Standard: DIN 371
- Tolerance class: 2B
Product details
Technical Data
| Thread size | 1/4-20 UNC | |
| Coating | uncoated | |
| Thread type | UNC | |
| Flank angle | 60 degrees | |
| Tool material | HSS E | |
| Standard | DIN 371 | |
| Tolerance class | 2B | |
| Taper lead form | B | |
| Shank | Plain shank with h9 | |
| Through-coolant | no | |
| Application for type of drilling | up to 3×D for through holes | |
| Cutting direction | right-hand | |
| Thread pitch | 1.27 mm | |
| Threads per inch | 20 | |
| Thread ⌀ | 6.35 mm | |
| Overall length L | 80 mm | |
| Shank ⌀ Ds | 7 mm | |
| Shank square □ | 5.5 mm | |
| Tapping hole ⌀ | 5.1 mm | |
| Type of threading tool | Machine tap for conventional machining | |
| Number of clamping slots | 3 | |
| Colour ring | without | |
| Number of cutting edges Z | 3 | |
| Thread depth | 19.05 mm | |
| Type of product | Tap |
Identification numbers & Classifications
| Article number | 133350 1/4-20 | |
| EAN / GTIN | 4045197074652 | |
| Manufacturer number | 133350 1/4-20 |
Application Table
N
13
P
15
P
15
Description
Version:
With spiral point.
Application:
For UNC uniform coarse threads ASME − B1.1.
Downloads & documents
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| Number of cutting edges Z | 3 | 3 | 3 | 3 | 3 | 3 |
| Type of threading tool | Machine tap for conventional machining | Machine tap for conventional machining | Machine tap for conventional machining | Machine tap for conventional machining | Machine tap for conventional machining | Machine tap for conventional machining |
| Colour ring | without | without | without | without | without | without |
| Thread size | 1/4-20 UNC | 1/4-20 UNC LH | 1/4-20 UNC LH | 1/4-20 UNC | 1/4-20 UNC | 1/4-20 UNC |
| Shank | Plain shank with h9 | Plain shank with h9 | Plain shank with h9 | Plain shank with h9 | Plain shank with h9 | Plain shank with h9 |
| Cutting direction | right-hand | left-hand | left-hand | right-hand | right-hand | right-hand |
| Tool material | HSS E | HSS E | HSS E | HSS E | HSS E | HSS E |