Typical specifications for the TTFIR 32 series include:
Tool type: Internal face grooving and face turning boring bar
Shank diameter: 32 mm
Overall length: 250 mm
Insert seat size: 4 (uses compatible TDXU/related inserts)
Machining diameter range: Depending on the model, examples include:
47–70 mm
62–100 mm
92–180 mm
Your code "4CT30 (100–200)" does not exactly match the standard TaeguTec catalog designation, so it may be:
an internal stock code,
a distributor-specific part number, or
a customized designation.
If you're looking for the exact insert, dimensions, or replacement tool, please upload:
a photo of the tool or its engraving, or
the complete catalog/part number.