DORMER EP311/4 SPIRAL POINT TAP 1/4 INCH X 28 5973884
UNF Machine Tap Spiral Point
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Dormer:EP311/4
Rubix:2016114
EAN:7320760138496
Technical specifications
| Threading | 1/4-28 unf |
|---|---|
| Threading diameter | 6.35 mm |
| Type | american through-bores |
Documents
Product details : DORMER EP311/4 SPIRAL POINT TAP 1/4 INCH X 28 5973884
Universal machine tap for through holes and threads UNF with thread tolerance 2B. Version in HSS-E PM (cobalt) with steam-tempered surface for better adhesion of cutting oil. This also makes it suitable for tapping in stainless steels. Equipped with shell cutting for better cutting the hole and propelling the chip. Cut in accordance with Form B (3.5-5 courses). Dimensions according to DIN 5156. Suitable for threads up to 2.5xD
Strengths
Superb performance in a range of materials
Short thread length means low torque and better chip evacuation
Manufactured from high speed cobalt steel for unbeatable toughness, edge strength & wear resistance
Available in bright or steam tempered (ST) finish, with 2B finish tolerances
Premium substrate with steam oxide surface treatment
reduces wear and chip welding in abrasive or harder
Short thread length means low torque and better chip evacuation
Manufactured from high speed cobalt steel for unbeatable toughness, edge strength & wear resistance
Available in bright or steam tempered (ST) finish, with 2B finish tolerances
Premium substrate with steam oxide surface treatment
reduces wear and chip welding in abrasive or harder
Applications
Suitable for tapping and through holes in a wide range of materials
Technical specifications
Attributes
| Threading | 1/4-28 unf |
|---|---|
| Threading diameter | 6.35 mm |
| Type | american through-bores |
| With cooling spray | no |
| Direction of threading | right |
| Drilling diameter | 5.5 mm |
| Tail diameter | 8 mm |
| Square drive adapter | 7 mm |
| Thread depth | 15 mm |
| Coating | steam tempered |
| Total length | 80 mm |
| Body material | hss-e |
| Threading | 1/4 |
| No. of threads per inch | 28 |
| Tolerance | 2b |
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£ 40.42 incl. VAT
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