STC has produced various type of Drill as:
• Solid Carbide Type
• Brazed Carbide Type
• Oil Hole Coolant Type
  Solid Carbide Head Step Drill       Oil Hole Burnishing Drill
      Oil Hole Spiral Drill    
  Solid Carbide Spiral Drill       Solid Burnishing Drill
Spiral Flute Drill
- Harden material to be cut as
stainless steel, cast iron and
- For work piece without hole or
deep-hole drilling and bottom
- Easier the chip flow out follow
the spiral flute.
Burnishing Drill
- Better hole finishing with extra
- For work piece as Aluminum
- Better hole concentricity with
a straighter and less
oversized hole.