Finish boring tools & adaptors
Our high-precision and robust fine boring head has been tried and tested a thousand times. A simple design, internal coolant supply and hole-type inserts provide reliable function and easy handling:
- No “stick/slip” when adjusting in both directions
- Clamping without dimensional change at the cutting edge
- Large pre-adjustment range
- Large fine adjustment range
- No parallax errors when reading the scales
The diameter ranges are coordinated in such a way that boring tools with the same cutting features can always be used in production.
The range is generally made up of three basic modules - deviations are possible according to the system.
Fine boring heads
Boring range: 6 - 150 mm
Fine adjustment: Ø 1/100 mm per graduation line
Reversal error: less than 2µ (2/1000 mm)
Fine boring head 6 - 28 mm
Fine boring head Starflex 22 - 88 mm / HSK 22 - 150 mm
Fine boring head Starflex 22 - 150 / HSK 22 - 150 mm
Large scale boring range
Boring range: 87 - 520 mm
Fine adjustment: Ø 1/100 mm per graduation line
Reversal error: less than 2µ (2/1000 mm)
These bridge tools are default designed for integration of one MicroCut Cartridge with advanced fine adjustment. The second carriage is needed for adjustment of unbalance.
Bridge fine boring tool 87 - 202 mm
Bridge fine boring tool 200 - 520 mm
Adapters
Fine boring adaptor
FineCut drill adapter
You can find further details in the Johne & Co. Starflex-Tools catalogue
or in the Johne & Co. HSK-Tools catalogue. ![]()
















