TWLNR/L

18 sizes available · 8 specification fields · standard: ISO

TWLNR/L is a boring bar for internal turning that takes negative 80° trigon (W-type) inserts. It is listed here in 18 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.

WNM. 0804..
WNM. 0604..

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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)
A32S TWLNL 08	WNM. 0804..	L	32	250	22	23	≥40
A32S TWLNR 08	WNM. 0804..	R	32	250	22	23	≥40
S25S TWLNL 06	WNM. 0604..	L	25	250	17	23	≥32
S25S TWLNR 06	WNM. 0604..	R	25	250	17	23	≥32
S32T TWLNL 06	WNM. 0604..	L	32	300	22	30	≥40
S32T TWLNR 06	WNM. 0604..	R	32	300	22	30	≥40
S25S TWLNL 08	WNM. 0804..	L	25	250	17	23	≥32
S25S TWLNR 08	WNM. 0804..	R	25	250	17	23	≥32
S32T TWLNL 08	WNM. 0804..	L	32	300	22	30	≥40
S32T TWLNR 08	WNM. 0804..	R	32	300	22	30	≥40
S40U TWLNL 08	WNM. 0804..	L	40	350	27	37.5	≥50
S40U TWLNR 08	WNM. 0804..	R	40	350	27	37.5	≥50
S50V TWLNL 08	WNM. 0804..	L	50	400	35	47	≥63
S50V TWLNR 08	WNM. 0804..	R	50	400	35	47	≥63
A40T TWLNL 08	WNM. 0804..	L	40	300	27	37.5	≥50
A40T TWLNR 08	WNM. 0804..	R	40	300	27	37.5	≥50
A50U TWLNL 08	WNM. 0804..	L	50	350	35	47	≥63
A50U TWLNR 08	WNM. 0804..	R	50	350	35	47	≥63