SELF-SANITISATION AGAINST BACTERIA AND FUNGI
Steel

Material
Natural steel, turned finish.
Standard executions
H7 reamed hole.
- GN 164-B: without friction ring.
- GN 164-R: with NBR synthetic rubber friction ring.
Special executions on request
- Laser-engraved precision graduations (see Graduations).
- Matte chrome-plated scale rings.