ASP powder steel BLUE-TEC coated countersink din 335 form C 90°, 3-surface shank

In Karnasch high-performance countersinks, the chip flutes are always CBN-ground.
This guarantees: excellent chip evacuation, chatter-free work, surface free of scores, best centering properties.

Characteristics:

ASP powder steel + BLUE-TEC coated

Manufactured from powder metallurgy high-speed steel. For significantly longer service life compared to HSS-XE steel.

BLUE-TEC coating for a further significant increase in service life, even with dry machining (no/little cooling)

For sinking into the following materials:

• Stainless steels (V2A / V4A)
• Rust and acid resistant steels
• Titanium and titanium alloys
• All other steels, cast iron and light metals
... when long service lives are required.

3-surface shank gives:
– Outstanding torque transfer