E7103/8NO7

HSS Straight Flute Serial Hand Tap, NPT, ANSI Standard
Ordering number: 5977653

Set of straight flute hand taps NO7 for National Pipe Taper thread NPT 3/8" with 18 TPI and Normal class of fit, consisting of 1 tap with a 4-6xP second lead and 1 tap with a 2-3xP plug lead, dimensions according to ~ANSI B94.9 standard with 17.8mm shank and 13.5mm square drive, HSS with bright finish for 1.5xD through or blind hole threading in free machining and plain carbon steel and copper or copper alloys

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Product Feature

Bright (uncoated)

Thread Form, American National Pipe Taper

ANSI B94.9 – Tap Standard

Normal Fit Class for Pipe Thread

Through or Blind Hole Application

1.5×D Usable Tool Depth to Diameter Ratio

High Speed Steel Tool Material

B 4-6, C 2-3

Straight Flute Geometry

Right Hand Rotation / Cutting

Product Detail

Description	Value
Product name	E7103/8NO7
EDP number	0210338
EAN number	7320760210338
Thread diameter size (TDZ)	3/8
Thread diameter - millimeter (TD)	17.15 mm
Threads per inch (TPI)	18
Overall length - millimeter (OAL)	80 mm
Overall length - inch (OAL)	3.1496 inch
Threading length - millimeter (THL)	27 mm
Threading length - inch (THL)	1.063 inch
Connection diameter - inch (DCON MS)	0.7008 inch
Connection diameter - millimeter (DCON MS)	17.8 mm
Flute count (NOF)	4
Tap chamfer length - millimeter (TCL)	19.5 mm
Clamping width - inch (WSC)	0.5315 inch
Clamping width - millimeter (WSC)	13.5 mm
Clamping Length - inch (LCS)	0.5118 inch
Clamping Length - millimeter (LSC)	13 mm
Premachined hole diameter - inch (PHD)	0.5709 inch
Premachined hole diameter - millimeter (PHD)	14.5 mm
Gross weight - grams	266.4
ANSI	E7103/8NO7
ISO	E7103/8NO7
Ordering code ANSI	E7103/8NO7

Cutting Conditions

P - Steel and cast steel (steels with alloy content ≤ 10% and a hardness of < 45HRC)

P1

P1 - Free machining steel (carbon steels with increased machinability)

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	Suitability	v_c
P1.1 - Free machining sulfurized carbon steel with a hardness of < 240HB	help_outline Primary use	23 ft/min
P1.2 - Free machining sulfurized and phosphorized carbon steel with a hardness of < 180HB	help_outline Primary use	23 ft/min
P1.3 - Free machining sulfurized/phosphorized and leaded carbon steel with a hardness of < 180HB	help_outline Primary use	26 ft/min

P2

P2 - Plain carbon steel (steels comprised of mainly iron and carbon)

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	Suitability	v_c
P2.1 - Plain low carbon steel containing < 0.25%C with a hardness of < 180HB	help_outline Primary use	20 ft/min
P2.2 - Plain medium carbon steel containing < 0.55%C with a hardness of < 240HB	help_outline Primary use	16 ft/min
P2.3 - Plain high carbon steel containing > 0.55%C, with a hardness of < 300HB	help_outline Possible use	13 ft/min

P3

P3 - Alloy steel (carbon steels with an alloying content ≤ 10%)

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	Suitability	v_c	f
P3.1 - Alloy steel with a hardness of < 180HB	help_outline Primary use	13 ft/min
P3.2 - Alloy steel with a hardness of 180 - 260HB	help_outline Possible use	13 ft/min

P4

P4 - Tool steel (special alloy steel for tools, dies and molds)

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	Suitability	v_c	f
P4.1 - Tool steel with a hardness of < 26HRC	help_outline Possible use	10 ft/min

K - Cast Iron (castings of iron and carbon alloys with > 2% carbon content)

K1

K1 - Gray iron (GG) (iron-carbon castings with a lamellar graphite microstructure)

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	Suitability	v_c
K1.1 - Gray iron, ferritic or ferritic-pearlitic with a hardness of < 180HB	help_outline Possible use	20 ft/min
K1.2 - Gray iron, ferritic-pearlitic or pearlitic with a hardness of 180 - 240HB	help_outline Possible use	13 ft/min
K1.3 - Gray iron, pearlitic with a hardness of 240 - 280HB	help_outline Possible use	10 ft/min

K2

K2 - Malleable iron (GTS/GTW) (heat-treated iron-carbon castings with a graphite-free microstructure)

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	Suitability	v_c	f
K2.1 - Malleable iron, ferritic with a hardness of < 160HB	help_outline Possible use	23 ft/min
K2.2 - Malleable iron, ferritic or pearlitic with a hardness of 160 - 200HB	help_outline Possible use	20 ft/min

K3

K3 - Ductile iron (GGG) (iron-carbon castings with a nodular graphite microsturcture)

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	Suitability	v_c	f
K3.1 - Ductile (nodular/spheriodal) iron, ferritic with a hardness of < 180HB	help_outline Possible use	23 ft/min
K3.2 - Ductile (nodular/spheriodal) iron, ferritic or pearlitic with a hardness of 180 - 220HB	help_outline Possible use	16 ft/min

K4

K4 - Austenitic or austempered ductile iron (Ni-Resist/ADI) (iron-carbon alloy castings with an austenitic or ausferrite microstructure)

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	Suitability	v_c	f
K4.1 - Austenitic cast iron with a hardness of < 180HB	help_outline Possible use	20 ft/min
K4.2 - Austenitic cast iron with a hardness of 180 - 240HB	help_outline Possible use	16 ft/min

K5

K5 - Compacted graphite iron (CGI) (iron-carbon castings with a vermicular graphite structure)

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	Suitability	v_c	f
K5.1 - Vermicular, compacted graphite iron with a hardness of < 180HB	help_outline Possible use	23 ft/min
K5.2 - Vermicular, compacted graphite iron with a hardness of 180 - 220HB	help_outline Possible use	16 ft/min

N - Non-ferrous metals (metals including alloys without an appreciable amount of iron)

N1

N1 - Wrought aluminium

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	Suitability	v_c	f
N1.3 - Wrought aluminium alloys with a hardness of 100 - 150HB	help_outline Possible use	26 ft/min

N2

N2 - Cast aluminium

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	Suitability	v_c
N2.1 - Cast aluminium alloys with a hardness of < 75HB	help_outline Possible use	36 ft/min
N2.2 - Cast aluminium alloys with a hardness of 75 - 90HB	help_outline Possible use	33 ft/min
N2.3 - Cast aluminium alloys with a hardness of 90 < 140HB	help_outline Possible use	23 ft/min

N3

N3 - Copper or copper alloys

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	Suitability	v_c
N3.1 - Free-cutting copper-alloys materials with excellent machining properties	help_outline Primary use	56 ft/min
N3.2 - Short-chip copper-alloys with good to moderate machining properties	help_outline Primary use	33 ft/min
N3.3 - Electrolytic copper and long-chip copper-alloys with moderate to poor machining properties	help_outline Possible use	16 ft/min

N4

N4 - Polymers(synthetic or semi-synthetic materials)

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	Suitability	v_c	f
N4.2 - Thermosetting polymers	help_outline Possible use	16 ft/min
N4.3 - Reinforced polymers or composites	help_outline Possible use	10 ft/min