External and Internal Carbide Thread Milling Cutter 1/4"x18 NPT

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Our Price: £66.00(Exc. 20% VAT)(£79.20 Inc. VAT)

Model: H10091EN18NPT
Brand: APT Carbide End Mills

Shipped Weight: 92 g

Availability:

Only 3 left in stock - order soon

APT Carbide End Mills

Carbide End Mills APT Brand

External and Internal Solid Carbide Thread Milling Cutter 18 TPI 1/4"x18 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 H10091EN18NPT (mm)

Thread	TPI	Shank Diameter	Head Diameter
1/4"x18 NPT	18	10	9.1

Length	Reach	Flutes
75	14.1	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 = 3500	G6.3 12K Balanced Tools RPM = 3300	G6.3 12K Balanced Tools RPM = 2800	G6.3 12K Balanced Tools RPM = 2200
G2.5 20K Balanced Tools RPM = 8500	G2.5 20K Balanced Tools RPM = 8500	G2.5 20K Balanced Tools RPM = 8500	G2.5 20K Balanced Tools RPM = 8000
Tool Entry Feed = 30mm/min	Tool Entry Feed = 30mm/min	Tool Entry Feed = 24mm/min	Tool Entry Feed = 24mm/min
Cutting Feed = 100mm/min	Cutting Feed = 100mm/min	Cutting Feed = 80mm/min	Cutting Feed = 80mm/min
Cut in 4-5 passes	Cut in 4-5 passes	Cut in 4-5 passes	Cut in 4-5 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 = 3500	G6.3 12K Balanced Tools RPM = 4200-4800	G6.3 12K Balanced Tools RPM = 4200-4800
G2.5 20K Balanced Tools RPM = 8500	G2.5 20K Balanced Tools RPM = 8500	G2.5 20K Balanced Tools RPM = 8500
Tool Entry Feed = 30mm/min	Tool Entry Feed = 30-36mm/min	Tool Entry Feed = 150-180mm/min
Cutting Feed = 100mm/min	Cutting Feed = 100-120mm/min	Cutting Feed = 150-180mm/min
Cut in 4-5 passes	Cut in 4-5 passes	Cut in 3-4 passes
Application Choice Good	Application Choice Good	OK or use DLC Coated