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Dormer E6531/4 5978395 NPT spiral flute machine tap, 1/4" x 18 thread, 27° spiral flute angle, HSS, ANSI standard. Designed for threading steel and cast steel (P material group). 27 flutes, 1.1/16" overall length, 3.5/16" connection diameter, 0.562" clamping width.

Name: Dormer E6531/4 5978395 NPT spiral flute machine tap, 1/4" x 18 thread, 27° spiral flute angle, HSS, ANSI standard. Designed for threading steel and ca
Brand: Dormer Pramet
Price: 71.09 USD
Availability: InStock
Rating: 5.0 (3 reviews)

MODEL 5978395

BRAND

Dormer Pramet

SKU

6082078

WEIGHT

0.150 lb

UOM

each

$71.09 Each

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Returnable:No

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Basic Standard

ANSI

Clamping width - fractional inch (WSC)

0.562

Clamping width - inch

0.421

Coating

Bright

Coating property (CTP)

Connection diameter - inch (DCON MS)

3.5/16

Connection diameter - millimeter (DCON MS)

14.27

EDP number

297278

Flute count (NOF)

Flute Geometry (FDC)

Spiral Flute Geometry

Flute helix angle (FHA)

Hand (Cutting direction)

Right

Material

HSS

Material application

P - Steel and cast steel

MID number

5978395

Ordering code ANSI

E6531/4

Overall length - fractional inch (OAL)

3.5/16

Overall length - inch (OAL)

3.3125

Overall length - millimeter (OAL)

1.1/16

Shank

Cylindrical shank with Square

Thread diameter - millimeter (TD)

0.4331

Thread diameter size (TDZ)

1/4

Thread form (THFT)

NPT - National taper pipe

Threads per inch (TPI)

Usable length (ULDR)

1.5

Usable Length - fractional inch (LU)

1.1/16

Combination drill-tap with a 27° spiral flute, for National Pipe Taper thread NPT 1/4" with 18 TPI and Normal class of fit, dimensions according to ANSI standard with 0.5620" shank and 0.5620" square drive, HSS with bright finish and 27° helix angle for 1.5xD through or blind hole threading in free machining steel.