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Machining of tap hole and internal thread

Product features and benefits:

For materials up to 44 HRC
no pre-drilled taphole necessarytool for a specific pitch with corrected thread profilefor several dimensions

International material comparison

Technical details

thread symbol:: UNF
nominal diameter d₁ [mm]:: 7.9 mm - 9.5 mm
nominal diameter [in]:: 0.311 " - 0.374 "
nominal size:: 5/16
pitch [mm]:: 1.058 mm
pitch [in]:: 0.042 "
threads per inch:: 24
thread orientation:: internal
basic version:: ZBGF - circular drill thread mill
type:: circular drill thread mill-W
coolant supply:: IKZ
coating:: TIALN-T4
shank diameter d₂:: 10 mm
OAL l₁:: 76 mm
flutes /number of ridges:: 4
length of shank:: 40 mm
diameter of milling part:: 6.6
cutting material:: HM

thread symbol

UNF

nominal diameter d₁ [mm]

7.9 mm - 9.5 mm

nominal diameter [in]

0.311 " - 0.374 "

nominal size

5/16

pitch [mm]

1.058 mm

pitch [in]

0.042 "

threads per inch

thread orientation

internal

basic version

ZBGF - circular drill thread mill

type

circular drill thread mill-W

coolant supply

IKZ

coating

TIALN-T4

shank diameter d₂

10 mm

OAL l₁

76 mm

flutes /number of ridges

length of shank

40 mm

diameter of milling part

6.6

cutting material

Material	Steel materials Search for value P1.1 Cold-extrusion steels, Construction steels, Free-cutting steels, etc. <= 600_N/mm² P2.1 Construction steels, Cementation steels, Steel castings, etc. <= 800_N/mm² P3.1 Cementation steels, Heat-treatable steels, Cold work steels, etc. <= 1000 N/mm² P4.1 Heat-treatable steels, Cold work steels, Nitriding steels, etc. <= 1200 N/mm² P5.1 High-alloyed steels, Cold work steels, Hot work steels, etc. <= 1400 N/mm² No results found Stainless steel materials Search for value M1.1 Ferritic, martensitic <= 950 N/mm² M2.1 Austenitic <= 950 N/mm² M3.1 Austenitic-ferritic (Duplex) <= 1100 N/mm² M4.1 Austenitic-ferritic heat-resistant (Super Duplex) <= 1250 N/mm² No results found Cast materials Search for value K1.1 Cast iron with lamellar graphite (GJL) 100-250 N/mm² K1.2 Cast iron with lamellar graphite (GJL) 250-450 N/mm² K2.1 Cast iron with nodular graphite (GJS) 350-500 N/mm² K2.2 Cast iron with nodular graphite (GJS) 500-900 N/mm² K3.1 Cast iron with vermicular graphite (GJV) 300-400 N/mm² K3.2 Cast iron with vermicular graphite (GJV) 400-500 N/mm² K4.1 Malleable cast iron (GTMW, GTMB) 250-500 N/mm² K4.2 Malleable cast iron (GTMW, GTMB) 500-800 N/mm² No results found Non ferrous materials Search for value N1.1 Aluminium wrought alloys <= 200 N/mm² N1.2 Aluminium wrought alloys <= 350 N/mm² N1.3 Aluminium wrought alloys <= 550 N/mm² N1.4 Aluminium cast alloys Si <= 7% N1.5 Aluminium cast alloys 7% < Si <= 12% N1.6 Aluminium cast alloys 12% < Si <= 17% N2.1 Pure copper, low-alloyed copper <= 400 N/mm² N2.2 Copper-zinc alloys (brass, long-chipping) <= 550 N/mm² N2.3 Copper-zinc alloys (brass, short-chipping) <= 550 N/mm² N2.4 Copper-aluminium alloys (alu bronze, long-chipping) <= 800 N/mm² N2.5 Copper-tin alloys (tin bronze, long-chipping) <= 700 N/mm² N2.6 Copper-tin alloys (tin bronze, short-chipping) <= 400 N/mm² N3.1 Magnesium wrought alloys <= 500 N/mm² N3.2 Magnesium cast alloys <= 500 N/mm² N4.1 Duroplastics (short-chipping) N4.3 Fibre-reinforced synthetics (fibre content <= 30%) N4.4 Fibre-reinforced synthetics (fibre content > 30%) No results found Special materials Search for value S1.1 Pure titanium <= 450 N/mm² S1.2 Titanium alloys <= 900 N/mm² S1.3 Titanium alloys <= 1250 N/mm² S2.1 Pure nickel <= 600 N/mm² S2.2 Nickel-base alloys <= 1000 N/mm² S2.4 Cobalt-base alloys <= 1000 N/mm² No results found Hard materials Search for value H1.1 High strength steels, hardened steels, hard castings 44 – 50 HRC H1.2 High strength steels, hardened steels, hard castings 50 – 55 HRC No results found

Unit	Millimeter Inch

ZBGF-W-2xD-R30-IKZ-HB-TiAlN-T4

Product features and benefits:

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