Our toughest 10% grade for drilling and end milling demanding applications in materials <45 HRC, carbon steels, stainless steels, Ti and Ni alloys. Lower speeds but higher feeds and interrupted cutting conditions.
GC120U / K44UF Grade Image 12% grade for drilling, end milling, and tapping Ti and Ni alloys, high alloy steel, grey cast iron, and composites. Able to run at elevated cutting speeds.
GC100S / DK460UF / K40UF
GC100S / DK460UF / K40UF

10% grade for drilling, end milling, and tapping. Increased wear resistance while maintaining a high toughness K1c value. Capable of running in Ti alloys, HRSA materials, austenitic stainless steels, grey cast iron, and CFRP materials.

Grade Specifications
Co 10.0
WC incl. Doping 90.0
Density 14.45
Vickers Hardness HV30 1620 ± 50
Rockwell Hardness HRA 92.1
Fracture Toughness K1C 10.6
Transverse Rupture Strength 4000
Transverse Rapture Strenght PSI 580,000
Porosity A:  < 02
B:     00
C:     00
Grain Size 0.65
Recommended Applications
Drilling
Drilling
End Milling
Tapping
Recommended Application Material
Austentic Stainless Steels
Austentic Stainless Steels
Carbon Steels
CFRP
Composite Materials
Copper alloys
Ferritic Stainless Steel
Grey Cast Iron
Grey Cast Iron
Heat Resistant Alloys
Low-Alloyed Steel
Malleable Cast Iron
Martensitic Stainless Steel
Plastics
Superalloys (Fe-/Ni-/Co-/Ti-based)
Titanium Alloys
Wood