Sumitomo introduces the solid carbide GS Drill Series – the new “Global Standard” in solid carbide drilling. With an advanced carbide substrate and highly wear resistant DEX coating, the GS Drill Series allows for increased feed rates and running speed.
The DEX coating has alternately stacked AlCr and SiNi coating layers that not only provide high heat resistance, but also exceptional chipping resistance.
  
Another feature of the GS Drill is wider flutes to accommodate for excellent chip evacuation when machining steels, stainless steels, cast irons, super alloys, and non-ferrous materials. Also with its newly configured point geometry, the GS Drill reduces cutting forces and promotes stable drilling.    The GS Drill Series is available in external coolant and coolant-through styles. External coolant drills are available in 2XD and 4XD lengths, while coolant-through drills are offered in 3XD, 5XD and 8XD lengths.