Seiko Instruments Inc.Drill Bits
Precision Turned Parts Business

Facility Information

Over 70 years, SII facilities have supported the watch component processing tool manufacturing. Our long history, combined with our originality and ingenuity, enable to create high quality drill bits.

Carbide tool grinding machine

  • For processing straight-flute drill bits
  • Ohno and Dalian Unit
Carbide tool grinding machine

Tap grinding machine

  • For tap and female gauge processing
  • Dalian Unit
Tap grinding machine

Small-diameter tool grinding machine

  • For processing drill bits with spiral grooves
  • Ohno Unit
Small-diameter tool grinding machine

Profile grinder

  • For cutter profile processing
  • Ohno and Dalian Unit
Profile grinder