Wokesi 4mm Cutting Dia,50mmOAL,Uncoated,2Flute,Straight,90 Degree Point Angle,HRC45,Metric,Solid Tungsten Carbide,NC Spotting Drill Bit Centering Drill Center Tool,Slow Spiral,Cutting Tools

1.Widely used in hardness from copper,cast iron,aluminium alloys,titanium alloy,mold steels,alloys steels, tools steels to the high hardness of HRC45 or more processing materials.(stainless steels: not to be used for stainless steels,pls use HRC55 cutter with TiAlN coated )2.Uncoated tools feature just the base substrate without any additional treatment or coatings and are suitable for a wide range of applications3.Make sure work piece and machine are stable,use high quality collet chuck 4.Please adjust the speed,feed and cutting depth according to actual cutting conditions.

• Cutting diameter:4mm,Cutting Length:8mm,Overall Length:50mm.90 Degree point angle.
• Material:Tungsten carbide.Long tool life.
• Suitable for process Copply,Alloy,Iron and Steel under HRC45(HRA73).
• NC drill of diameter over the drilling,centering and chamfering are obtained in a single operation.
• Round shanks allow use with a wide variety of toolholding systems