No.4 x 40 Powertap, UNC Spiral Flute, Steam Tempered Tap DIN371

£27.65

(Exc. 20% VAT)

In stock, immediate despatch

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Part Number

05726002.845

Range

Powertap NR40/C VAP

Thread Form

UNC (Unified National Coarse)

Size

No.4

Flute Type

Spiral Flute - For Blind Holes

Coating

Steam Tempered

Tolerance

Information

Thread Dia. D₁	Pitch	Thread Form	Thread Length L₂	Overall Length OAL	Shank Dia D₂	Square Sq	Tapping Drill Dia.
No.4	40	UNC Unified National Coarse	7mm	56mm	3.5mm	2.7mm	2.35mm

Flute Type: Spiral Flute

Recommended for: Blind Holes

Shank Standard: DIN 371

Type: High speed steel cobalt (HSSE) tap.

Coating: Steam Tempered VAP - The Steam Tempered is a Fe₃O₄-oxyd-coating which reduces the friction between tool and workpiece and prevents cold welding.

Tapping Materials
Excellent for tapping: All General Steels with a hardness <800N/mm²; All Cast Irons & Nodular Graphite; and Unalloyed Titanium; Unalloyed Nickel; and All forms of Aluminium Si<6%.
Good for tapping: All General Steels & Alloy Steels with a hardness 800 - 1200N/mm²; All Stainless Steels; All Cast Irons; Titanium Alloys; and Aluminium-cast alloys >6% Si.

For speeds please click the "Specifications" tab above.

Technical Data & Info

Guhring Powertaps Cutting Speeds:

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