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Tool Holders / M-System Boring Bars

MTQNR/L

14 sizes available · 8 specification fields · standard: ISO

MTQNR/L is a boring bar for internal turning that takes negative 60° triangle (T-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.

  • TNM. 1604..
  • TNM. 2204..
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Specifications

14 sizes
Product code Insert designation Cutting direction (hand) Connection diameter (mm) Functional length (mm) Functional width (mm) Shank height (mm) Minimum working diameter (mm)
S20R MTQNL 16 TNM. 1604.. L 20 200 13 18.3 ≥25
S20R MTQNR 16 TNM. 1604.. R 20 200 13 18.3 ≥25
S25S MTQNL 16 TNM. 1604.. L 25 250 17 23 ≥32
S25S MTQNR 16 TNM. 1604.. R 25 250 17 23 ≥32
S32T MTQNL 16 TNM. 1604.. L 32 300 22 30 ≥40
S32T MTQNR 16 TNM. 1604.. R 32 300 22 30 ≥40
S40U MTQNL 16 TNM. 1604.. L 40 350 27 37.5 ≥50
S40U MTQNR 16 TNM. 1604.. R 40 350 27 37.5 ≥50
S32T MTQNL 22 TNM. 2204.. L 32 300 22 30 ≥40
S32T MTQNR 22 TNM. 2204.. R 32 300 22 30 ≥40
S40U MTQNL 22 TNM. 2204.. L 40 350 27 37.5 ≥50
S40U MTQNR 22 TNM. 2204.. R 40 350 27 37.5 ≥50
S50V MTQNL 22 TNM. 2204.. L 50 400 35 47 ≥63
S50V MTQNR 22 TNM. 2204.. R 50 400 35 47 ≥63
Column codes
  • Insert Code — Insert designation
  • Product Direction — Cutting direction (hand)
  • DCON — Connection diameter (mm)
  • LF — Functional length (mm)
  • WF — Functional width (mm)
  • H — Shank height (mm)
  • D min — Minimum working diameter (mm)

Dimensions in millimetres unless noted. Values are the manufacturer's published figures.