Skip to main content

Request a Quote

External & internal designation matrix

Whitworth / BSW Threading

Compare matching external and internal thread turning insert designations by standard, insert size, pitch, and handedness. Select the exact designation when requesting a quotation.

Designations: 116
Available grade: FH

Whitworth,BSW ExternalThreading carbide threading insert catalog 3D reference — Catalog 3D reference

Selection matrix

Match external and internal inserts

A dash means the source catalog does not list a matching designation for that side. No counterpart is inferred.

Standard	Size	Pitch	Hand	External designation	Internal designation
W	06	18	Left	—	06NL18 W
W	06	18	Right	—	06NR18 W
W	06	20	Left	—	06NL20 W
W	06	20	Right	—	06NR20 W
W	06	22	Left	—	06NL22 W
W	06	22	Right	—	06NR22 W
W	06	26	Left	—	06NL26 W
W	06	26	Right	—	06NR26 W
W	08	16	Left	—	08NL16 W
W	08	16	Right	—	08NR16 W
W	08	18	Left	—	08NL18 W
W	08	18	Right	—	08NR18 W
W	08	19	Left	—	08NL19 W
W	08	19	Right	—	08NR19 W
W	08	20	Left	—	08NL20 W
W	08	20	Right	—	08NR20W
W	08	24	Left	—	08NL24 W
W	08	24	Right	—	08NR24 W
W	08	28	Left	—	08NL28 W
W	08	28	Right	—	08NR28 W
W	11	14	Left	11EL14 W	11NL14 W
W	11	14	Right	11ER14 W	11NR14 W
W	11	16	Left	11EL16 W	11NL16 W
W	11	16	Right	11ER16 W	11NR16 W
W	11	18	Left	11EL18 W	11NL18 W
W	11	18	Right	11ER18 W	11NR18 W
W	11	19	Left	11EL19 W	11NL19 W
W	11	19	Right	11ER19 W	11NR19 W
W	11	20	Left	11EL20 W	11NL20 W
W	11	20	Right	11ER20 W	11NR20 W
W	11	26	Left	11EL26 W	11NL26 W
W	11	26	Right	11ER26 W	11NR26 W
W	11	28	Left	11EL28 W	11NL28 W
W	11	28	Right	11ER28 W	11NR28 W
W	16	8	Left	16EL8 W	16NL8 W
W	16	8	Right	16ER8 W	16NR8 W
W	16	9	Left	16EL9 W	16NL9 W
W	16	9	Right	16ER9 W	16NR9 W
W	16	10	Left	16EL10 W	16NL10 W
W	16	10	Right	16ER10 W	16NR10 W
W	16	11	Left	16EL11 W	16NL11 W
W	16	11	Right	16ER11 W	16NR11 W
W	16	12	Left	16EL12 W	16NL12 W
W	16	12	Right	16ER12 W	16NR12 W
W	16	14	Left	16EL14 W	16NL14 W
W	16	14	Right	16ER14 W	16NR14 W
W	16	16	Left	16EL16 W	16NL16 W
W	16	16	Right	16ER16 W	16NR16 W
W	16	18	Left	16EL18 W	16NL18 W
W	16	18	Right	16ER18 W	16NR18 W
W	16	19	Left	16EL19 W	16NL19 W
W	16	19	Right	16ER19 W	16NR19 W
W	16	20	Left	16EL20 W	16NL20 W
W	16	20	Right	16ER20 W	16NR20 W
W	16	26	Left	16EL26 W	16NL26 W
W	16	26	Right	16ER26 W	16NR26 W
W	16	28	Left	16EL28 W	16NL28 W
W	16	28	Right	16ER28 W	16NR28 W
W	22	5	Left	22EL5 W	22NL5 W
W	22	5	Right	22ER5 W	22NR5 W
W	22	6	Left	22EL6 W	22NL6 W
W	22	6	Right	22ER6 W	22NR6 W
W	22	7	Left	22EL7 W	22NL7 W
W	22	7	Right	22ER7W	22NR7 W
W	27	4	Left	27EL4 W	27NL4 W
W	27	4	Right	27ER4 W	27NR4 W
W	27	4.5	Left	27EL4.5 W	27NL4.5 W
W	27	4.5	Right	27ER4.5 W	27NR4.5 W

Standard / size: W · 06
Pitch / hand: 18 · Left

External

—

Internal

Standard / size: W · 06
Pitch / hand: 18 · Right

External

—

Internal

Standard / size: W · 06
Pitch / hand: 20 · Left

External

—

Internal

Standard / size: W · 06
Pitch / hand: 20 · Right

External

—

Internal

Standard / size: W · 06
Pitch / hand: 22 · Left

External

—

Internal

Standard / size: W · 06
Pitch / hand: 22 · Right

External

—

Internal

Standard / size: W · 06
Pitch / hand: 26 · Left

External

—

Internal

Standard / size: W · 06
Pitch / hand: 26 · Right

External

—

Internal

Standard / size: W · 08
Pitch / hand: 16 · Left

External

—

Internal

Standard / size: W · 08
Pitch / hand: 16 · Right

External

—

Internal

Standard / size: W · 08
Pitch / hand: 18 · Left

External

—

Internal

Standard / size: W · 08
Pitch / hand: 18 · Right

External

—

Internal

Standard / size: W · 08
Pitch / hand: 19 · Left

External

—

Internal

Standard / size: W · 08
Pitch / hand: 19 · Right

External

—

Internal

Standard / size: W · 08
Pitch / hand: 20 · Left

External

—

Internal

Standard / size: W · 08
Pitch / hand: 20 · Right

External

—

Internal

Standard / size: W · 08
Pitch / hand: 24 · Left

External

—

Internal

Standard / size: W · 08
Pitch / hand: 24 · Right

External

—

Internal

Standard / size: W · 08
Pitch / hand: 28 · Left

External

—

Internal

Standard / size: W · 08
Pitch / hand: 28 · Right

External

—

Internal

Standard / size: W · 11
Pitch / hand: 14 · Left

External

Internal

Standard / size: W · 11
Pitch / hand: 14 · Right

External

Internal

Standard / size: W · 11
Pitch / hand: 16 · Left

External

Internal

Standard / size: W · 11
Pitch / hand: 16 · Right

External

Internal

Standard / size: W · 11
Pitch / hand: 18 · Left

External

Internal

Standard / size: W · 11
Pitch / hand: 18 · Right

External

Internal

Standard / size: W · 11
Pitch / hand: 19 · Left

External

Internal

Standard / size: W · 11
Pitch / hand: 19 · Right

External

Internal

Standard / size: W · 11
Pitch / hand: 20 · Left

External

Internal

Standard / size: W · 11
Pitch / hand: 20 · Right

External

Internal

Standard / size: W · 11
Pitch / hand: 26 · Left

External

Internal

Standard / size: W · 11
Pitch / hand: 26 · Right

External

Internal

Standard / size: W · 11
Pitch / hand: 28 · Left

External

Internal

Standard / size: W · 11
Pitch / hand: 28 · Right

External

Internal

Standard / size: W · 16
Pitch / hand: 8 · Left

External

Internal

Standard / size: W · 16
Pitch / hand: 8 · Right

External

Internal

Standard / size: W · 16
Pitch / hand: 9 · Left

External

Internal

Standard / size: W · 16
Pitch / hand: 9 · Right

External

Internal

Standard / size: W · 16
Pitch / hand: 10 · Left

External

Internal

Standard / size: W · 16
Pitch / hand: 10 · Right

External

Internal

Standard / size: W · 16
Pitch / hand: 11 · Left

External

Internal

Standard / size: W · 16
Pitch / hand: 11 · Right

External

Internal

Standard / size: W · 16
Pitch / hand: 12 · Left

External

Internal

Standard / size: W · 16
Pitch / hand: 12 · Right

External

Internal

Standard / size: W · 16
Pitch / hand: 14 · Left

External

Internal

Standard / size: W · 16
Pitch / hand: 14 · Right

External

Internal

Standard / size: W · 16
Pitch / hand: 16 · Left

External

Internal

Standard / size: W · 16
Pitch / hand: 16 · Right

External

Internal

Standard / size: W · 16
Pitch / hand: 18 · Left

External

Internal

Standard / size: W · 16
Pitch / hand: 18 · Right

External

Internal

Standard / size: W · 16
Pitch / hand: 19 · Left

External

Internal

Standard / size: W · 16
Pitch / hand: 19 · Right

External

Internal

Standard / size: W · 16
Pitch / hand: 20 · Left

External

Internal

Standard / size: W · 16
Pitch / hand: 20 · Right

External

Internal

Standard / size: W · 16
Pitch / hand: 26 · Left

External

Internal

Standard / size: W · 16
Pitch / hand: 26 · Right

External

Internal

Standard / size: W · 16
Pitch / hand: 28 · Left

External

Internal

Standard / size: W · 16
Pitch / hand: 28 · Right

External

Internal

Standard / size: W · 22
Pitch / hand: 5 · Left

External

Internal

Standard / size: W · 22
Pitch / hand: 5 · Right

External

Internal

Standard / size: W · 22
Pitch / hand: 6 · Left

External

Internal

Standard / size: W · 22
Pitch / hand: 6 · Right

External

Internal

Standard / size: W · 22
Pitch / hand: 7 · Left

External

Internal

Standard / size: W · 22
Pitch / hand: 7 · Right

External

Internal

Standard / size: W · 27
Pitch / hand: 4 · Left

External

Internal

Standard / size: W · 27
Pitch / hand: 4 · Right

External

Internal

Standard / size: W · 27
Pitch / hand: 4.5 · Left

External

Internal

Standard / size: W · 27
Pitch / hand: 4.5 · Right

External

Internal

Need help confirming a threading designation?

Send the thread standard, size, pitch, hand, quantity, and delivery destination.

Request a Quote