External and Internal Carbide Thread Milling Cutter 27 TPI 1/8"x27 NTP

External and Internal Carbide Thread Milling Cutter 27 TPI 1/8''x27 NTP
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Our Price:  £46.00(Exc. 20% VAT)(£55.20 Inc. VAT)

Model:  H08074EN27NPT
Brand:  APT Carbide End Mills

Shipped Weight:  60 g

Availability:  

Only 13 left in stock - order soon  

Only 13 left in stock - order soon

APT Carbide End Mills

Carbide End Mills APT Brand


External and Internal Solid Carbide Thread Milling Cutter 27 TPI 1/8"x27 NPT.

60° NPT National Pipe Thread Defined by USAS B2.1:1968 Tolerance Class Standard NPT.

For Tapered type Thread.

Max Thread Depth = 2 x Diameter or less.

NPT Thread Milling Cutters in this range can be used to cut both Internal and External Threads.

Suitable for Steel, Stainless Steel, High Temperature Alloys, Titanium Alloys, Aluminium, Copper and Copper Alloys, Cast Iron and Hardened Steel up to 55HRC.

Details and Dimensions for H08074EN27NPT (mm)
Thread TPI Shank Diameter Head Diameter
1/8"x27 NPT 27 8 7.4
Length Flute Length Flutes
60 9.4 4
Recommended Speeds and Feeds - Or use software or online calculator for general thread milling and match the tool type.
In the case of persistent tool breakage increase the number of passes or try mini or single tooth cutters.
Entry feed can be ignored for aluminium non-ferrous metals and plastics.
Using more passes will increase machining time but will create smaller chips so recutting chips may be less problematic.
Mild to Alloy Steel <HB180 Mild to Alloy Steel HB180-280 Mild Steel, Alloy Steel HB280-350 Stainless
SS400, SC10C Etc. S45C, SCM440 Etc. SNCM439 Etc. SUS304, SUS316
G6.3 12K Balanced Tools RPM = 3800 G6.3 12K Balanced Tools RPM = 3600 G6.3 12K Balanced Tools RPM = 3200 G6.3 12K Balanced Tools RPM = 2800
G2.5 20K Balanced Tools RPM = 9000 G2.5 20K Balanced Tools RPM = 9000 G2.5 20K Balanced Tools RPM = 9000 G2.5 20K Balanced Tools RPM = 8500
Tool Entry Feed = 36mm/min Tool Entry Feed = 36mm/min Tool Entry Feed = 30mm/min Tool Entry Feed = 36mm/min
Cutting Feed = 120mm/min Cutting Feed = 120mm/min Cutting Feed = 100mm/min Cutting Feed = 120mm/min
Cut in 3-4 passes Cut in 3-4 passes Cut in 3-4 passes Cut in 3-4 passes
Application Choice Good Application Choice Good Application Choice Good OK or use Titanium Series
Grey Cast Iron Ductile Iron Aluminium Alloy Si<5%
FC300 FCD450 Plastic, Bronze, Cooper Alloys
G6.3 12K Balanced Tools RPM = 3800 G6.3 12K Balanced Tools RPM = 4800 G6.3 12K Balanced Tools RPM = 4800
G2.5 20K Balanced Tools RPM = 9000 G2.5 20K Balanced Tools RPM = 9000 G2.5 20K Balanced Tools RPM = 9000
Tool Entry Feed = 36mm/min Tool Entry Feed = 36-45mm/min Tool Entry Feed = 200mm/min
Cutting Feed = 120mm/min Cutting Feed = 120-150mm/min Cutting Feed = 200mm/min
Cut in 3-4 passes Cut in 3-4 passes Cut in 2-4 passes
Application Choice Good Application Choice Good OK or use DLC Coated

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