MDUNR/L

14 sizes available · 8 specification fields · standard: ISO

MDUNR/L is a boring bar for internal turning that takes negative 55° rhombic (D-type) inserts. It is listed here in 14 sizes, 18.3–47 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.

DNM. 1104..
DNM. 1506..

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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)
S20R MDUNL 11	DNM. 1104..	L	20	200	13	18.3	≥25
S20R MDUNR 11	DNM. 1104..	R	20	200	13	18.3	≥25
S25S MDUNL 11	DNM. 1104..	L	25	250	17	23	≥32
S25S MDUNR 11	DNM. 1104..	R	25	250	17	23	≥32
S32T MDUNL 11	DNM. 1104..	L	32	300	22	30	≥40
S32T MDUNR 11	DNM. 1104..	R	32	300	22	30	≥40
S25S MDUNL 15	DNM. 1506..	L	25	250	17	23	≥32
S25S MDUNR 15	DNM. 1506..	R	25	250	17	23	≥32
S32T MDUNL 15	DNM. 1506..	L	32	300	22	30	≥40
S32T MDUNR 15	DNM. 1506..	R	32	300	22	30	≥40
S40U MDUNL 15	DNM. 1506..	L	40	350	27	37.5	≥50
S40U MDUNR 15	DNM. 1506..	R	40	350	27	37.5	≥50
S50V MDUNL 15	DNM. 1506..	L	50	400	35	47	≥63
S50V MDUNR 15	DNM. 1506..	R	50	400	35	47	≥63