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High-Performance Internal Tool Holder TWLNR/L (95°)

The TWLNR/L internal boring bar by SMOXH represents a robust solution for professional internal machining tasks. Equipped with a 95° approach angle and adapted for trigonal WN inserts, this tool enables efficient workflows for both internal boring and facing of deeper contours. Its solid construction without cooling channels is intentionally focused on providing maximum structural stability.

Technical data

  • Tool type: Internal tool holder
  • Version: TWLNR/L
  • Approach angle: 95°
  • Insert shape: WN..
  • Main application: Longitudinal turning, Facing
  • Clamping system: Claw Clamping
  • Cooling: Without Cooling Holes
  • Packaging unit: 1 Pc.

Dimensions of TWLNR/L internal tool holders

Art. Nr. d h L f Dmin Insert Shim Shim Screw Clamp Clamp Screw Stamp
S20R TWLNR-06 SM50471 20 18 200 15 ≥26 WNM.0604.. BAX-WN06 CASV M3x8
TSK2 TSBV M5x24 -
S20R TWLNL-06 SM50488 20 18 200 15 ≥26 WNM.0604.. BAX-WN06 CASV M3x8 TSK2 TSBV M5x24 -
S25S TWLNR-06 SM05488 25 23 250 19,5 ≥36 WNM.0604.. BAX-WN06 CASV M3x8 TSK2 TSBV M5x24 -
S25S TWLNL-06 SM05495 25 23 250 19,5 ≥36 WNM.0604.. BAX-WN06 CASV M3x8 TSK2 TSBV M5x24 -
S32T TWLNR-06 SM05518 32 30 300 24 ≥44 WNM.0604.. BAX-WN06 CASV M3x8 TSK2 TSBV M5x24 -
S32T TWLNL-06 SM05501 32 30 300 24 ≥44 WNM.0604.. BAX-WN06 CASV M3x8 TSK2 TSBV M5x24 -
S25S TWLNR-08 SM05532 25 23 250 19,5 ≥38 WNM. 0804.. BAX-WN08 TSAV M4X10 TSK1 TSBV M6x28 TSP M6,5x12
S25S TWLNL-08 SM05570 25 23 250 19,5 ≥38 WNM. 0804.. BAX-WN08 TSAV M4X10 TSK1 TSBV M6x28 TSP M6,5x12
S32T TWLNR-08 SM05549 32 30 300 24 ≥44 WNM. 0804.. BAX-WN08 TSAV M4X10
TSK1 TSBV M6x28 TSP M6,5x12
S32T TWLNL-08 SM05525 32 30 300 24 ≥44 WNM. 0804.. BAX-WN08 TSAV M4X10 TSK1 TSBV M6x28 TSP M6,5x12
S40U TWLNR-08 SM05556 40 37 350 30 ≥50 WNM. 0804.. BAX-WN08 TSAV M4X10 TSK1 TSBV M6x28 TSP M6,5x12
S40U TWLNL-08 SM05587 40 37 350 30 ≥50 WNM. 0804.. BAX-WN08 TSAV M4X10
TSK1 TSBV M6x28 TSP M6,5x12

Applications

Due to its massive build, the tool holder is particularly well-suited for roughing operations, where high cutting forces are standard. The 95-degree geometry supports the reliable turning of cylindrical inner contours as well as facing tasks. This makes the boring bar an excellent choice for manufacturing workshops relying on consistent material removal and high process stability in heavy-duty machining.

Special features

The defining characteristic of this turning tool is its solid claw clamping system. This design guarantees that the WN insert is held firmly in the pocket, eliminating torsional movement. Even under varying cutting loads during roughing, the exact positioning is maintained, which promotes uniform machining results and can positively support insert tool life.

SMOXH
SM50471

Data sheet

Type of clamping
Claw Clamping
Cooling Holes
without cooling holes
Inserts
WN..
Turning
Longitudinal turning

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