DORMER EP311/2 SPIRAL POINT TAP 1/2 INCH X 20 5973879


UNF Machine Tap Spiral Point

References
dormer:EP311/2
rubix:2016113
ean:7320760138533
Machine tap 1/2inch x 20 DIN2184-1
brand logo
Technical specifications
Input9
Total length110 mm
Body materialHSS-E
See all Specifications

Product details : DORMER EP311/2 SPIRAL POINT TAP 1/2 INCH X 20 5973879


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

Applications

Suitable for tapping and through holes in a wide range of materials

Technical specifications


Attributes
Input9
Total length110 mm
Body materialHSS-E
Tolerance2B
TypeAmerican through-bores
With cooling sprayNo
Direction of threadingRight
Drilling diameter9 mm
Square drive adapter7 mm
CoatingSteam Tempered
Threading (inch)1/2
No. of threads per inch20
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£ 55.25 excl. VAT
/ Each
£ 66.30 incl. VAT
  • Usually arrives within 14 working days