Pipe Dies Selection Chart

OO-R, 11-R, 12-R, O-R,
Ratchet Threaders or 30A, 31A 3-Way Pipe Threaders

Click on catalog number for ordering information

Die Material or Type

Catalog No.

Nominal Pipe Size - Threads Per Inch

1/8-27

1/4-18

3/8-18

1/2-14

3/4-14

1-11 1/2

1 1/4-11 1/2

1 1/2-11 1/2

2-11 1/2

(NPT) National Pipe Taper

Alloy RH

High Speed RH

High Speed LH

H.S. for Stainless Steel RH

H.S. for PVC RH

HS Reversible RH*

(NPSM) National Pipe Straight Mechanical

Alloy RH

(API) American Petroleum Institute***

High Speed RH

70720

70725

70730

(BSPT) British Standard Pipe Taper**

1/8-28

1/4-19

3/8-19

1/2-14

3/4-14

1-11

1 1/4-11

1 1/2-11

2-11

Alloy RH

High Speed RH

High Speed LH

HS Reversible RH*

High Speed for Plastic Coated

(BSPP) British Standard Pipe Parallel**

Alloy RH

* Dies can be reversed in die head for close to wall threading.
** Requires British Die Head
*** Requires API Die Head

Pipe Dies Selection Chart

OO-R, 11-R, 12-R, O-R, Ratchet Threaders or 30A, 31A 3-Way Pipe Threaders

OO-R, 11-R, 12-R, O-R,
Ratchet Threaders or 30A, 31A 3-Way Pipe Threaders