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Professional Internal Threading Tool Holder SIR (Right)

This tool holder is specifically engineered for precise internal threading on CNC machines and conventional lathes. The right-hand SIR design is tailored for 11 IR, 16 IR, and 22 IR inserts, opening up flexible applications for various thread pitches and profiles. The robust construction aims to reduce vibrations during the cutting process, thereby positively influencing the surface quality of the internal thread.

Technical data

  • Design: Internal boring bar SIR
  • Machining direction: Right
  • Main application: Threading
  • Compatible insert sizes: 11 IR, 16 IR, 22 IR
  • Clamping system: Screw clamp
  • Cooling design: Without cooling holes
  • Packaging unit: 1 pc.

Dimensions of the Internal Threading Tool Holder SIR

Item. Nr. d b L h f L1 Dmin Insert Screw Shim Shim-Screw
SIR-10 K11 SM11830 10 10 125 9 7 - 12 11 IR SSV M2,5x6
- -
SIR-12 K11 SM11854 12 12 125 11 10 - 16 11 IR SSV M2,5x6 - -
SIR-16x13 M16 SM11991 16 13 150 15 10 32 16 16 IR SSV M3,5x8 - -
SIR-16 M16 1112393 16 15,5 150 15 12 27 20 16 IR I60M3,5x08TT - -
SIR-20 M16 1112394 20 19 150 18 14 28,7 25 16 IR I60M3,5x12TT MT16-MN SM4x8C
SIR-20 Q16 1112395 20 19 180 18 14 34 25 16 IR I60M3,5x12TT MT16-MN SM4x8C
SIR-25 M16 1112396 25 24 150 23 17 28,8 32 16 IR I60M3,5x12TT MT16-MN SM4x8C
SIR-32 R16 1112397 32 31 200 30 22 30,9 40 16 IR I60M3,5x12TT MT16-MN SM4x8C
SIR-32 S16 1112398 32 31 250 30 22 30,9 40 16 IR I60M3,5x12TT MT16-MN SM4x8C
SIR-40 T16 1112399 40 38,5 300 37 27 31,5 50 16 IR I60M3,5x12TT MT16-MN SM4x8C
SIR-50 U16 1112400 50 49,5 350 49 35 40,2 63 16 IR I60M3,5x12TT MT16-MN SM4x8C
SIR-20 Q22 1112401 20 19 180 18 15 35 25 22 IR I60M5x13,2 MT22-MN SM5x8,5C
SIR-25 R22 1112402 25 24 200 23 19 39 32 22 IR I60M4x15X MT22-MN SM5x8,5C
SIR-32 S22 1112403 32 31 250 30 22 36,4 40 22 IR I60M4x15X MT22-MN SM5x8,5C
SIR-40 T22 1112404 40 38,5 300 37 27 37,2 50 22 IR I60M4x15X MT22-MN SM5x8,5C
SIR-50 U22 1112405 50 48,5 350 47 35 42,6 63 22 IR I60M4x15X MT22-MN SM5x8,5C

Applications

The boring bar is primarily used for manufacturing precise internal threads in mechanical engineering, tool and mold making, as well as general series production. It is highly suitable for turning operations where external coolant supply or dry machining is planned. Thanks to its compatibility with different IR threading inserts, the holder covers a wide range of standard and specialized threading requirements.

Special features

The well-thought-out screw clamp mechanism impresses with its ease of use during insert changes and secures the cutting edge firmly in the pocket. This supports efficient workflows and helps to reduce setup times. The intentional design without internal cooling channels provides high stability in the tool shank, which favors a stable machining process, especially during extended internal turning operations.

SM11830

Data sheet

Inside/Outside
Inside
Gewindeplatten Große
11
16
22
Gewindeplatten Verwendung
RT300 Edelstahl
RT315 Steel and Stainless Steel
RT330 Universal
Gewinde
Imperial
Metric
Trapezoid
Type of clamping
Screw Clamp
Cooling Holes
without cooling holes
Rechts-Links
Right
thread profile
Full profile
Partial profile
Inserts
threaded inserts

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