Pick a size in the table below to see its own drawing and 3D model.
Tool Holders / T-System Boring Bars
TCKNR/L
6 sizes available · 8 specification fields · standard: ISO
TCKNR/L is a boring bar for internal turning that takes negative 80° rhombic (C-type) inserts. It is listed here in 6 sizes, 30–47 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.
- CN.. 1606..
Specifications
| Product code | Insert designation | Cutting direction (hand) | Connection diameter (mm) | Protruding / projection length (mm) | Functional width (mm) | Shank height (mm) | Minimum working diameter (mm) |
|---|---|---|---|---|---|---|---|
| A32T TCKNR 16 | CN.. 1606.. | R | 32 | 300 | 22 | 30 | ≥40 |
| A32T TCKNL 16 | CN.. 1606.. | L | 32 | 300 | 22 | 30 | ≥40 |
| A40U TCKNR 16 | CN.. 1606.. | R | 40 | 350 | 27 | 37.5 | ≥50 |
| A40U TCKNL 16 | CN.. 1606.. | L | 40 | 350 | 27 | 37.5 | ≥50 |
| S50V TCKNR 16 | CN.. 1606.. | R | 50 | 400 | 35 | 47 | ≥63 |
| S50V TCKNL 16 | CN.. 1606.. | L | 50 | 400 | 35 | 47 | ≥63 |
Column codes
- Insert Code — Insert designation
- Product Direction — Cutting direction (hand)
- DCON — Connection diameter (mm)
- LPR — Protruding / projection 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.
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