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Manufacturer number:
Serie | Pro Tap | |
Thread size | 4-40 UNC | |
Coating | TiN | |
Thread type | UNC | |
Flank angle | 60 degrees | |
Tool material | HSS E | |
Norm | DIN 371 | |
Tolerance class | 2B | |
Taper lead form | C | |
Helix angle | 40 degrees | |
Shank | Plain shank with h9 | |
Through-coolant | no | |
Application for type of drilling | up to 2.5×D for blind holes | |
Cutting direction | right-hand | |
Thread pitch | 0.635 mm | |
Threads per inch | 40 | |
Thread ⌀ | 2.84 mm | |
Overall length L | 56 mm | |
Shank ⌀ Ds | 3.5 mm | |
Shank square □ | 2.7 mm | |
Tapping hole ⌀ | 2.35 mm | |
Type of threading tool | Machine tap for dynamic machining | |
Number of clamping slots | 2 | |
Colour ring | green | |
Number of cutting edges Z | 2 | |
Thread depth | 7.1 mm | |
Type of product | Tap |
Article number | 137910 4-40 | |
EAN / GTIN | 4062406374785 | |
Manufacturer number | 137910 4-40 |
This article |
Recommendations |
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![]() ![]() HOLEX Pro Tap machine tap HSS-E 4-40 |
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Number of clamping slots | 2 | 3 | 3 | 2 | 3 |
Coating | TiN | uncoated | TiAlN | AlTiX | uncoated |
Thread pitch | 0.635 | 0.635 | 0.635 | 0.635 | 0.635 |
Shank square □ | 2.7 | 2.7 | 2.7 | 2.7 | 2.7 |
Tool material | HSS E | HSS E | HSS E PM | HSS E PM | HSS E |
Helix angle | 40 | 20 | 45 | 40 | 40 |
Thread depth | 7.1 | 5.7 | 7.1 | 7.1 | 7.1 |