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Thread size | 12-28 UNF | |
Coating | uncoated | |
Thread type | UNF | |
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 | 0.907 mm | |
Threads per inch | 28 | |
Thread ⌀ | 5.49 mm | |
Overall length L | 80 mm | |
Shank ⌀ Ds | 6 mm | |
Shank square □ | 4.9 mm | |
Tapping hole ⌀ | 4.7 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 | 10.96 mm | |
Type of product | Tap |
Article number | 138000 12-28 | |
EAN / GTIN | 4045197080301 | |
Manufacturer number | 138000 12-28 |
This article |
Recommendations |
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Machine tap, uncoated, UNF: 12-28 |
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Taper lead form | C | B |
Number of cutting edges Z | 3 | 3 |
Type of threading tool | Machine tap for conventional machining | Machine tap for conventional machining |
Colour ring | without | without |
Overall length L | 80 mm | 80 mm |
Thread ⌀ | 5.49 mm | 5.49 mm |
Shank ⌀ Ds | 6 mm | 6 mm |