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Series | Pro Tap | |
Thread size | 1/4-28 UNF | |
Coating | TiN | |
Thread type | UNF | |
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 | 0.907 mm | |
Threads per inch | 28 | |
Thread ⌀ | 6.35 mm | |
Overall length L | 80 mm | |
Shank ⌀ Ds | 7 mm | |
Shank square □ | 5.5 mm | |
Tapping hole ⌀ | 5.5 mm | |
Type of threading tool | Machine tap for dynamic machining | |
Number of clamping slots | 3 | |
Number of cutting edges Z | 3 | |
Thread depth | 19.05 mm | |
Type of product | Tap |
Article number | 133425 1/4-28 | |
EAN / GTIN | 4062406374310 | |
Manufacturer number | 133425 1/4-28 |
This article |
Recommendations |
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HOLEX Pro Tap machine tap HSS-E, TiN, UNF: 1/4-28 |
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Number of clamping slots | 3 | 3 | 3 | 3 | 2 | 2 |
Type of threading tool | Machine tap for dynamic machining | Machine tap for dynamic machining | Machine tap for dynamic machining | Machine tap for dynamic machining | Machine tap for dynamic machining | Machine tap for dynamic machining |
Coating | TiN | TiAlN | TiAlN | AlTiX | AlTiX | TiN |
Flank angle | 60 degrees | 60 degrees | 60 degrees | 60 degrees | 60 degrees | 60 degrees |
Thread pitch | 0.907 mm | 0.907 mm | 0.907 mm | 0.907 mm | 0.907 mm | 0.907 mm |
Application for type of drilling | up to 3×D for through holes | up to 3×D for through holes | up to 2.5×D for blind holes | up to 3×D for through holes | up to 2.5×D for blind holes | up to 2.5×D for blind holes |
Shank ⌀ Ds | 7 mm | 7 mm | 7 mm | 7 mm | 7 mm | 7 mm |