NPT

Solid Carbide Thread Mills NPT | Coolant Through

A

Internal

30° 30°

DRILLING

90°

1° 47’

L 1

External

L 6

D 2

D 1

B

NPT | Coolant Through

BORING

Part No.

TPI (Pitch)

Flutes

D 1

D 2

L 6

L 1

TM27NPTCH

27 27 18 18 14 14

1/16 and 1/8

3 4 4 4 4 4 4 5 4 3 4 4 4 4 4 4 5 5

0.245 0.300 0.305 0.363 0.495 0.620 0.620 0.745 0.745

0.250 0.312 0.312 0.375 0.500 0.625 0.625 0.750 0.750

0.437 0.482 0.625 0.680 0.875 1.000 1.125 1.219 1.500 11.30 12.25 15.70 17.25 23.70 25.40 28.75 30.95 38.10

2.375 3.000 3.000 3.000 3.500 4.000 4.000 4.000 5.000 58.00 64.00 64.00 84.00 84.00 93.00 93.00

HDTM27NPTCH

1/8

TM18NPTCH

1/4 and 3/8 1/4 and 3/8 1/2 and 3/4

HDTM18NPTCH

C

TM14NPTCH

HDTM14NPTCH

3/4

TM11NPTCH

11.5

1 1

REAMING

HDTM11NPTCH

11

TM8NPTCH

8

2-1/2

TM27NPTCHM

27 27 18 18 14 14

1/16 and 1/8

5.95 7.62 7.75 9.22

6.00 8.00 8.00

HDTM27NPTCHM

1/8

TM18NPTCHM

1/4 and 3/8 1/4 and 3/8 1/2 and 3/4

HDTM18NPTCHM

10.00 12.00 16.00 16.00 20.00 20.00

TM14NPTCHM

11.95 15.75 15.75 18.92 19.75

HDTM14NPTCHM

3/4

D

TM11NPTCHM

11.5 11.5

1 1

HDTM11NPTCHM

105.00 115.00

TM8NPTCHM

8

2-1/2

BURNISHING

E

X

Weldon Flat

E: 52 - 55

E: 4

SPECIALS

To order a thread mill with a Weldon flat, replace the leading TM designator with TW (available for inch shanks 3/8 and above, or metric shanks 6mm and above) Example: Cylindrical shank = TM NK0500-NPT | Weldon shank flat = TW NK0500-NPT NOTE: Weldon flats have a minimum order quantity of 2 pieces

Key on E: 1

= Imperial (in) = Metric (mm )

www.alliedmachine.com | 1.330.343.4283

E: 13

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