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Karnasch premium high performance countersinks for chatter-free countersinking

Karnasch countersinks for the machining of steel, cast iron, non-ferrous and light metals, stainless and acid-resistant steels and titanium alloys on CNC machines

Countersinks belong to the standard products in the tool industry. Almost no drilling takes place without sinking. Countersinking is used for secondary machining of the materials and provides them with the final surface finish. That is why Karnasch relies on the highest quality and the latest tool technologies for countersinking. Karnasch countersinks are available in different designs for every application. The special BLUE-TEC tool coating makes the countersinks by Karnasch additionally unique.

1

Steel

2

Stainless steel

3

Cast iron

4

Non-ferrous and light metals

5

Abrasive and hardened steels

6

Rust- and acid-resistant steels

7

Titanium and titanium alloys

8

Graphite, carbon and glass fiber composites

9

Exotic materials

10

Hardox 500

Countersinks for machining of steel

  • Different quality stages (HSS-XE, carbide-tipped, ASP powder steel and carbide)
  • Different shank types (cylindrical, Weldon and 3 surface shank)
  • CBN-grinded
  • From Ø 6.3 mm to 80mm
  • Different versions (60°, 82°, 90° and 120°)

Countersinks for machining of stainless steel

  • Different quality stages (HSS-XE, ASP powder steel and carbide)
  • Different shank types (cylindrical, Weldon and 3 surface shank)
  • CBN-grinded
  • From Ø 6.3 mm to 80 mm
  • Different versions (60°, 82°, 90° and 120°)

Countersinks for machining of cast iron

  • Different quality stages (HSS-XE, carbide-tipped, ASP powder steel and carbide)
  • Different shank types (cylindrical, Weldon and 3 surface shank)
  • CBN-grinded
  • From Ø 6.3 mm to 80 mm
  • Different versions (60°, 82°, 90° and 120°)

Countersinks for machining of non-ferrous and light metals

  • Different quality stages (HSS-XE, carbide-tipped, ASP powder steel and carbide)
  • Different shank types (cylindrical, Weldon or 3 surface shank)
  • CBN-grinded
  • From Ø 6.3 mm to 80 mm
  • Different versions (60°, 82°, 90° and 120°)

Countersinks for machining of abrasive and hardened steels

  • Different quality stages (carbide-tipped and carbide)
  • Different shank types (cylindrical and Weldon)
  • CBN-grinded
  • From Ø 6.3 mm to 45 mm
  • Different versions (82° and 90°)

Countersinks for machining of rust- and acid-resistant steels

  • Different quality stages (ASP powder steel, carbide-tipped and carbide)
  • Different shank types (cylindrical, Weldon and 3 surface shank)
  • CBN-grinded
  • From Ø 6.3 mm to 45 mm
  • Different versions (82° and 90°)

Countersinks for machining of titanium and titanium alloys

  • Different quality stages (ASP powder steel, carbide-tipped and carbide)
  • Different shank types (cylindrical, Weldon and 3 surface shank)
  • CBN-grinded
  • From Ø 6.3 mm to 45 mm
  • Different versions (82° and 90°)

Countersinks for machining of graphite, carbon and glass fiber composites

  • Specially adjusted coating
  • Cylindrical shank
  • CBN-grinded
  • From Ø 10.4 mm to 31 mm
  • 90° version

Countersinks for machining of exotic materials

  • Specially adjusted coating
  • Cylindrical shank
  • CBN-grinded
  • From Ø 10.4 mm to 31 mm
  • 90° version

Countersinks for machining of Hardox 500

  • Specially adjusted coating
  • Cylindrical shank
  • CBN-grinded
  • From Ø 10.4 mm to 31 mm
  • 90° version

Premium countersinks – also available in a kit!

Karnasch countersinks are also available in a kit with four to six different countersinks. Choose between different countersink kits the one that is best suited for your project. Or fill an empty case with exactly the countersinks you need.

Karnasch countersinks with optimized cutting geometry

Karnasch Professional Tools countersinks are available in HSS-XE, ASP powder steel, solid carbide- and carbide-tipped types, with diameters from 4.3 mm to 80 mm. The special BLUE-TEC tool coating significantly increases surface hardness and tool life. CBN deep-ground flutes enables nearly burr- and chatter-free countersinking.

Due to the wide range of countersinks, nearly all steels that are difficult to process (such as stainless and acid-resistant steels), titanium and titanium alloys, light metals and other types of steel, can be machined. The cutting edge geometry of the countersinks has been optimized especially for automatic and rapid feed, enabling up to 30% faster countersinking and up to 40% longer tool life (RAPID-CUT version).

Countersinking characteristics

  1. HSS-XE / ASP powder steel / solid carbide- and carbide-tipped
  2. Diameter range from 4.3 mm to 80 mm
  3. 60°, 82°, 90°, 120°
  4. CBN special grinding
    1. for a clean cut with low heat development
    2. considerably higher sharpness for significantly improved cutting performance, burr-free cutting and tool life
  5. Special Blue-Tec coating
  6. Different shank types
    1. Weldon shank 19 mm (3/4")
    2. Morse taper
    3. Round shank
    4. 3 surface shank

Areas of application of countersinks 

  1. Abrasive and hardened steels > 1000 N/mm²
  2. Gray cast iron > 240HB
  3. Stainless steels
  4. Acid resistant steels
  5. Titanium and titanium alloys
  6. Cast iron and light metals
  7. Non-ferrous metals

Karnasch countersinks – Premium quality for professional Applications

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Newest tool technologies

RAPID-CUT version

The cutting edge geometry has been optimized especially for automatic and rapid feed, enabling up to 30% faster countersinking and up to 40% longer tool life.

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Latest tool coating

Special BLUE-TEC coating

The special BLUE-TEC coating significantly increases surface hardness and tool life.

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Diameter range

From 4.3 mm to 80 mm

Highest precision for perfect results due to narrow engineering tolerances. 

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Product characteristics

Premium quality

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

Characteristics of Karnasch countersinks

With Karnasch high performance countersinks, the flutes are CBN-ground. 
This guarantees: excellent chip removal / chatter-free machining / groove-free surface / best centering properties.




Kegelsenker - 3-Flächenschaft

Countersinks characteristics

3 surface shank

3 surface shank results in:

  • Excellent torque transmission
  • No slipping in the chuck
  • Significantly higher cutting performance

* CAUTION: In preparation. Not yet available for all articles. If absolutely necessary, please ask in advance if already available.

RAPID-CUT countersink Art. 20 1760 / 20 1765 already complete with 3 surface shank.

Carbide countersinks  Art. 20 1755 are supplied with cylindrical shank. These countersinks are mainly used in HIGH-TECH machining on CNC machines with shrink chucks. Only the cylindrical shank is suitable for this purpose.

Kegelsenker - Durchmesser

Countersinks characteristics

Diameter relief angle

Every diameter is given a clearance angle at its circumference.

Result: The largest cutting diameter is thus always the highest point.

Kegelsenker - Hinterschliff

Countersinks characteristics

Axial CBN relief grinding

Result: Clear cut with low heat generation.

Kegelsenker - Radialer Hinterschliff

Countersinks characteristics

CBN relief grinding

Radially adapted CBN relief grinding according to the diameter.

Result: The cutting edge is always the highest point in the diameter.

Kegelsenker - Tiefgeschliffene Spannnut

Countersinks characteristics

CBN deep-ground flutes

CBN deep-ground flutes result in considerably higher burr clearance and sharpness compared to milled flutes. This results in a significantly higher cutting performance and tool life.


KARNASCH COATINGS

Tool coatings
for longer tool lives

Karnasch tool coatings - keeping cool even under extreme conditions

Karnasch high precision tools are available with heat-resistant high performance coatings for longer tool lives. The various coatings are adjusted to the materials that are to be processed.

Learn more


Tool coatings
for longer tool lives

Karnasch tool coatings in highest quality

Professionals rely on tool coatings! Achieve optimal results with the premium coatings by Karnasch. Each of our coatings is adjusted to the materials that are to be processed. Choose between ten special coatings: from droplet-free nanocrystalline diamond coating over BLACK-TEC, BLUE-TEC, BLUE-DUR and DURABLUE up to HXC-Nano3, Tcx3, NHC-7000, Kx, DMC-X2, TiN and TiN-GOLD.

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