TTUNR/L

12 sizes available · 8 specification fields · standard: ISO

TTUNR/L is a boring bar for internal turning that takes negative 60° triangle (T-type) inserts. It is listed here in 12 sizes, 23–47 mm shank height, right- and left-hand versions, each with full specifications and a dimensioned drawing. Typical use: boring, internal turning and back-facing.

Insert compatibility

This family is built for the following insert designations (as listed in the catalogue data). The exact size in each row of the table below is in the Insert designation column.

TNM. 1604..
TNM. 2204..

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Specifications

Product code	Insert designation	Cutting direction (hand)	Connection diameter (mm)	Functional length (mm)	Functional width (mm)	Shank height (mm)	Minimum working diameter (mm)
S25S TTUNL 16	TNM. 1604..	L	25	250	17	23	≥32
S25S TTUNR 16	TNM. 1604..	R	25	250	17	23	≥32
S32T TTUNL 16	TNM. 1604..	L	32	300	22	30	≥40
S32T TTUNR 16	TNM. 1604..	R	32	300	22	30	≥40
S25S TTUNL 22	TNM. 2204..	L	25	250	17	23	≥32
S25S TTUNR 22	TNM. 2204..	R	25	250	17	23	≥32
S32T TTUNL 22	TNM. 2204..	L	32	300	22	30	≥40
S32T TTUNR 22	TNM. 2204..	R	32	300	22	30	≥40
S40U TTUNL 22	TNM. 2204..	L	40	350	27	37.5	≥50
S40U TTUNR 22	TNM. 2204..	R	40	350	27	37.5	≥50
S50V TTUNL 22	TNM. 2204..	L	50	400	35	47	≥63
S50V TTUNR 22	TNM. 2204..	R	50	400	35	47	≥63