type HSS Drill Bit application Metal Drilling size 4-12mm, 4-20mm, 4-32mm flute type Straight Flute shank Hex Shank process Fully Ground material HSS or Cobalt M35 point degree 135 degree Split Point  surface finish Titanium Coated supply ability  300000sets per month carton/set/piece/box Set lenght,width,height 40*25*18cm