Skip to main content
FH Carbide

External & internal designation matrix

BBUT 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
20
BBUT Threading 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.

Dimensional specifications

Dimensions in mm. External and internal models retain their own values.

External dimensions

DesignationSizePitchHandLXYT
16EL8 BBUT168Left161.62.53.65
16ER8 BBUT168Right161.62.53.65
16EL10 BBUT1610Left161.42.23.65
16ER10 BBUT1610Right161.42.23.65
16EL12 BBUT1612Left161.42.13.65
16ER12 BBUT1612Right161.42.13.65
16EL16 BBUT1616Left161.11.63.65
16ER16 BBUT1616Right161.11.63.65
22EL8 BBUT228Left221.62.54.76
22ER8 BBUT228Right221.62.54.76

Internal dimensions

DesignationSizePitchHandLXYT
16IL8 BBUT168Left161.62.53.65
16IR8 BBUT168Right161.62.53.65
16IL10 BBUT1610Left161.42.23.65
16IR10 BBUT1610Right161.42.23.65
16IL12 BBUT1612Left161.42.13.65
16IR12 BBUT1612Right161.42.13.65
16IL16 BBUT1616Left161.11.63.65
16IR16 BBUT1616Right161.11.63.65
22IL8 BBUT228Left221.62.54.76
22IR8 BBUT228Right221.62.54.76

External and internal reference drawings

External threading · BBUT-E

BBUT-E product image
Product image
BBUT-E threading insert dimensional drawing DG-78
Dimension drawing

Internal threading · BBUT-I

BBUT-I product image
Product image
BBUT-I threading insert dimensional drawing DG-79
Dimension drawing

Need help confirming a threading designation?

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

Request a Quote