Karnasch premium counterbores for sinking of hexagon socket screws

Premium counterbores – also available in a kit!

Karnasch counterbores are also available in a kit with six different counterbores. Choose between different counterbore kits the one that is best suited for your project. 

Karnasch counterbores with specially developed cutting geometries

Karnasch Professional Tools counterbores are available in HSS-XE- and HSS-XE TITAN-TEC versions.

The HSS-XE counterbores are made of high quality special steel "XE" for significantly longer tool lives as compared to HSS steels. The TITAN-TEC coated counterbores also considerably increase tool lives, even during dry machining (without or with only minimal cooling).

Due to the wide range of counterbores, nearly all steels that are difficult to machine, such as stainless and acid-resistant stainless steels, non-ferrous and light metals, cast iron and many more, can be used.

Areas of application of counterbores

1. For sinking hexagon socket screws DIN 912, DIN 6912, DIN 7984
2. Cylinder screws ISO 1207 (DIN 84)

Tool material

HSS-XE

Counterbores are made of high quality special steel "XE" for significantly longer tool lives as compared to HSS steels

Modern tool coatings

TITAN-TEC coating

The TITAN-TEC coating by Karnasch increases surface hardness and tool life.

Diameter range

From Ø M2 to M12

Highest precision for perfect results due to narrow engineering tolerances. 

Product characteristics

Premium quality

Tools by Karnasch are manufactured with extraordinary diligence and undergo expansive verification processes for quality assurance.