MicroCut™ finishing cartridge

MicroCut™ finishing cartridge
MicroCut™ finishing cartridge

Ultra fine precision cartridges with adjustment

The MicroCut™ fine boring cartridge is distinguished by its simple and precise adjustment mechanism. It enables a defined, faultless feed using a standard Torx key directly on the machine.

The high precision and unique operation reduces downtime, improves quality and raises your productivity.

MicroCut™ lowers your manufacturing error rate, minimises the stray field and ensures efficient production within the precision boring tolerances.
The MicroCut™ finishing cartridges are ideally suited for use in single or multi-blade special tools. No adjustment of the machine spindle is necessary.

Boring range: depends on application
Fine adjustment: Ø 1/100 mm per graduation line;
NEW: Ø 2/1000 mm p. g. line!
Reversal error: less than 2µ (2/1000 mm) 


  • Easy to operate: simple, reliable*
    • Backlash-free feed in both directions (positive and negative) using Torx key
    • Reversal error less than 2µ (2/1000 mm)
    • Fine adjustment in the region of 1/100 mm or 2/1000 mm diameter
  • Production efficiency
    • No clamping process
    • No measuring loop**
  • Can be read without errors (nonius not necessary!)
  • Stick slip free
  • Low maintenance
  • Easy to install (like ISO cartridge)
  • Combinable:
    several MicroCut™ cartridges in one special tool possible
  • Proven: has been used in production for 10 years
  • Long-lasting & robust: 3-year guarantee***

* The unique principle of the MicroCut™ fine adjustment deliberately does not have a complex, technological design which, based upon experience, would be liable to break down. It is precisely the puristic design strategy which ensures reliable results of the highest precision and accuracy with total dimensional accuracy.
** depends on the condition of the machine
*** apart from damage due to improper use (crash etc.)

Technical data

1. Fine adjustment possible with 0.01 mm or 0.002 mm per graduation line
1.2. Radial adjustment track: min. 0.4 mm, equivalent to 0.6 mm diameter
1.3. Axial length adjustment: ? 1 mm over wedge element

2. Rotation speed: max.10,000* U/min

3. Cooling: internal (boring in the casing)
3.1. Lubrication nipple
Recommended lubricant:

The maintenance interval depends on the conditions of use.
For continuous operation we recommend relubrication after four weeks.



For smaller boring diameters we also offer the technology as the MicroCut™ fine boring bar.

Are you looking on the other hand for a boring solution for efficient small scale or prototype production? Then we recommend the flexible MicroCut™ fine boring head (boring range Ø 21 to 115 mm).


“The special tools with MicroCut™ finishing cartridges by Johne & Co. are distinguished by their high repeat accuracy and feed accuracy. We therefore achieve optimal dimensional stability in serial production.”

Johannsen, Bitzer Kühlmaschinenbau Schkeuditz GMBH


“The easy handling with the logical feed principle of the finishing cartridge by Johne & Co. provides us with the necessary scope for high production reliability.”

Lorenz, John Deere Werke, Mannheim