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Thread size | 4-40 UNC | |
Coating | uncoated | |
Thread type | UNC | |
Flank angle | 60 degrees | |
Tool material | HSS E | |
Standard | DIN 371 | |
Tolerance class | 2B | |
Taper lead form | C | |
Helix angle | 20 degrees | |
Shank | Plain shank with h9 | |
Through-coolant | no | |
Application for type of drilling | up to 2×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 conventional machining | |
Number of clamping slots | 3 | |
Colour ring | without | |
Number of cutting edges Z | 3 | |
Thread depth | 5.7 mm | |
Type of product | Tap |
Article number | 137860 4-40 | |
EAN / GTIN | 4045197080134 | |
Manufacturer number | 137860 4-40 |
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Taper lead form | C | B | C | B |
Number of cutting edges Z | 3 | 2 | 3 | 2 |
Colour ring | without | without | without | without |
Threads per inch | 40 | 40 | 40 | 40 |
Through-coolant | no | no | no | no |
Shank ⌀ Ds | 3.5 mm | 3.5 mm | 3.5 mm | 3.5 mm |
Type of product | Tap | Tap | Taps | Taps |