501-6N28

501-6 Aircraft Extension Drill
Ordering number: 6001494

Aircraft extension-length drill with straight shank, diameter 0.1405" (N28) with an overall length of 6" and flute length of 1.3/4" according to NAS907 Type B standard with 135° heavy duty split point, HSS with steam tempered finish for 4xD drilling without pecking in steel, stainless steel and cast iron

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Product Feature

Steam Tempered (Steam Oxide) Surface Treatment

High Speed Steel Tool Material

NAS907 – Aerospace Drill Standards

4×D Usable Tool Depth to Diameter Ratio

Drill Point 135°

Cylindrical Shank / Straight Shank

Right Hand Rotation / Cutting

Product Detail

Description	Value
Product name	501-6N28
Cutting diameter - inch (DC)	0.1405 inch
Length chip flute - fractional inch (LCF)	1.3/4
Overall length - fractional inch (OAL)	6"
EAN number	086071581280
EDP number	058128
Gross weight - grams	10
Cutting diameter - millimeter (DC)	3.57 mm
Overall length - inch (OAL)	6 inch
Overall length - millimeter (OAL)	152.4 mm
ANSI	501-6N28
ISO	501-6N28
Cutting diameter (wire gauge size) (DC)	N28

Cutting Conditions

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

P2

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

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	Suitability	v_c	f
P2.2 - Plain medium carbon steel containing < 0.55%C with a hardness of < 240HB	help_outline Possible use	82 ft/min	0.0031 inch/rev
P2.3 - Plain high carbon steel containing > 0.55%C, with a hardness of < 300HB	help_outline Primary use	72 ft/min	0.0026 inch/rev

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 Possible use	62 ft/min	0.0031 inch/rev
P3.2 - Alloy steel with a hardness of 180 - 260HB	help_outline Possible use	49 ft/min	0.0031 inch/rev
P3.3 - Alloy steel with a hardness of 260 - 360HB	help_outline Primary use	43 ft/min	0.0026 inch/rev

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 Primary use	36 ft/min	0.0031 inch/rev
P4.2 - Tool steel with a hardness of 26 - 39RC	help_outline Possible use	33 ft/min	0.0026 inch/rev
P4.3 - Tool steel with a hardness of 39 - 45HRC	help_outline Possible use	26 ft/min	0.0022 inch/rev

M - Stainless steel (corrosion resistant steels with ≥ 11% chromium content)

M1

M1 - Ferritic stainless steel (straight chromium non-hardenable alloys)

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	Suitability	v_c	f
M1.1 - Stainless steel, ferritic with a hardness of < 160HB	help_outline Possible use	69 ft/min	0.0026 inch/rev
M1.2 - Stainless steel, ferritic with a hardness of 160 - 220HB	help_outline Possible use	56 ft/min	0.0026 inch/rev

M2

M2 - Martensitic stainless steel (straight chromium hardenable alloys)

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	Suitability	v_c	f
M2.1 - Stainless steel, martensitic with a hardness of < 200HB	help_outline Possible use	59 ft/min	0.0026 inch/rev
M2.2 - Stainless steel, martensitic with a hardness of 200 - 280HB	help_outline Possible use	49 ft/min	0.0026 inch/rev

M3

M3 - Austenitic stainless steel (chromium-nickel and chromium-nickel-manganese alloys)

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	Suitability	v_c	f
M3.1 - Stainless steel, austenitic with a hardness of < 200HB	help_outline Primary use	30 ft/min	0.0036 inch/rev
M3.2 - Stainless steel, austenitic with a hardness of 200 - 260HB	help_outline Primary use	26 ft/min	0.0036 inch/rev
M3.3 - Stainless steel, austenitic with a hardness of 260 - 300HB	help_outline Primary use	23 ft/min	0.0019 inch/rev

M4

M4 - Super-austenitic, Duplex or Precipitation Hardening stainless steel (austenitic alloys with > 20% Ni, austenitic-ferritic microstructure or precipitation hardened)

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	Suitability	v_c	f
M4.1 - Stainless steel, austenitic-ferritic or super-austenitic with a hardness of < 300HB	help_outline Primary use	30 ft/min	0.0019 inch/rev

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	f
K1.1 - Gray iron, ferritic or ferritic-pearlitic with a hardness of < 180HB	help_outline Possible use	98 ft/min	0.005 inch/rev
K1.2 - Gray iron, ferritic-pearlitic or pearlitic with a hardness of 180 - 240HB	help_outline Possible use	72 ft/min	0.0031 inch/rev
K1.3 - Gray iron, pearlitic with a hardness of 240 - 280HB	help_outline Possible use	56 ft/min	0.0031 inch/rev

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	82 ft/min	0.0026 inch/rev
K2.2 - Malleable iron, ferritic or pearlitic with a hardness of 160 - 200HB	help_outline Possible use	66 ft/min	0.0026 inch/rev
K2.3 - Malleable iron, pearlitic with a hardness of 200 - 240HB	help_outline Primary use	52 ft/min	0.0026 inch/rev

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	72 ft/min	0.0026 inch/rev
K3.2 - Ductile (nodular/spheriodal) iron, ferritic or pearlitic with a hardness of 180 - 220HB	help_outline Possible use	56 ft/min	0.0026 inch/rev
K3.3 - Ductile (nodular/spheriodal) iron, pearlitic with a hardness of 220 - 260HB	help_outline Primary use	43 ft/min	0.0026 inch/rev

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	66 ft/min	0.0026 inch/rev
K4.2 - Austenitic cast iron with a hardness of 180 - 240HB	help_outline Possible use	49 ft/min	0.0026 inch/rev
K4.3 - Austempered ductile iron with a hardness of 240 - 280HB	help_outline Primary use	36 ft/min	0.0026 inch/rev
K4.4 - Austempered ductile iron with a hardness of 280 - 320HB	help_outline Primary use	33 ft/min	0.0026 inch/rev
K4.5 - Austempered ductile iron with a hardness of 320 - 360HB	help_outline Primary use	26 ft/min	0.0026 inch/rev

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	75 ft/min	0.0026 inch/rev
K5.2 - Vermicular, compacted graphite iron with a hardness of 180 - 220HB	help_outline Possible use	56 ft/min	0.0026 inch/rev
K5.3 - Vermicular, compacted graphite iron with a hardness of 220 - 260HB	help_outline Primary use	43 ft/min	0.0026 inch/rev

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

N2

N2 - Cast aluminium

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	Suitability	v_c	f
N2.2 - Cast aluminium alloys with a hardness of 75 - 90HB	help_outline Primary use	89 ft/min	0.0036 inch/rev
N2.3 - Cast aluminium alloys with a hardness of 90 < 140HB	help_outline Primary use	79 ft/min	0.0031 inch/rev

N3

N3 - Copper or copper alloys

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	Suitability	v_c	f
N3.1 - Free-cutting copper-alloys materials with excellent machining properties	help_outline Possible use	89 ft/min	0.0043 inch/rev
N3.2 - Short-chip copper-alloys with good to moderate machining properties	help_outline Primary use	69 ft/min	0.0043 inch/rev
N3.3 - Electrolytic copper and long-chip copper-alloys with moderate to poor machining properties	help_outline Possible use	52 ft/min	0.0036 inch/rev

S - High-temperature alloys (superalloys with high temperature stength and corrosion resistant surpassing that of stainless steel)

S1

S1 - Titanium or titanium alloys

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	Suitability	v_c	f
S1.1 - Titanium or titanium alloys, with a hardness of <200HB	help_outline Primary use	75 ft/min	0.0031 inch/rev
S1.2 - Titanium alloys, with a hardness of 200 - 280HB	help_outline Primary use	39 ft/min	0.0022 inch/rev
S1.3 - Titanium alloys, a hardness of 280 - 360HB	help_outline Primary use	20 ft/min	0.0015 inch/rev

S2

S2 - Fe-based high-temperature alloys

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	Suitability	v_c	f
S2.1 - High-temperature Fe-based alloys with a hardness of <200HB	help_outline Possible use	26 ft/min	0.0026 inch/rev
S2.2 - High-temperature Fe-based alloys with a hardness of 200-280HB	help_outline Possible use	13 ft/min	0.0012 inch/rev

S3

S3 - Ni-based high-temperature alloys

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	Suitability	v_c	f
S3.1 - High-temperature Ni-based alloys with a hardness of <280HB	help_outline Possible use	20 ft/min	0.0026 inch/rev
S3.2 - High-temperature Ni-based alloys with a hardness of 280 - 360HB	help_outline Possible use	10 ft/min	0.0012 inch/rev

S4

S4 - Co-based high-temperature alloys

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	Suitability	v_c	f
S4.1 - High-temperature Co-based alloys with a hardness of <240HB	help_outline Possible use	16 ft/min	0.0026 inch/rev
S4.2 - High-temperature Co-based alloys with a hardness of 240 - 320HB	help_outline Possible use	7 ft/min	0.0012 inch/rev

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501-6N28_6001494_3D

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