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OSG is a leading manufacturer of taps, end mills, drills, and indexable cutting tools. OSG’s extensive line of high technology cutting tools features exclusive metallurgy, cutting geometries and proprietary surface treatments to help increase productivity, reliability and tool life. OSG also serves the fastener industry by offering a complete line of thread rolling, flat, cylindrical, planetary, rack and trim dies.

The company markets its products to numerous industries including automotive, aerospace, medical, die mold, energy, heavy industry and job shop.

Cutting Tools


From light production to high production, easy or difficult to machine materials, OSG has a tap for every application.

  • Spiral Flute
  • Spiral Point
  • Straight Flute
  • Forming
  • Pipe
  • Round Dies


Be it Stub or X-long, coolant-thru or solid, carbide or HSS, OSG has a drilling solution for you.

  • Stub (2D – 3D)
  • Jobber (4D – 7D)
  • Taper (8D – 30D)
  • Micro
  • Coolant-Fed
  • Others


Whether it’s Aluminum Alloy or Inconel, Hardened Steel or Stainless Steel, OSG has the end mill for your job.

  • Square
  • Roughing
  • Ball Nose
  • Corner Radius
  • Tapered
  • Double End


The latest technology in performance replaceable tip milling and drilling cutters from OSG.

  • Face Milling Cutters
  • Shoulder Milling Cutters
  • Radius Milling Cutters
  • Finishing End Mills
  • Screw Fit End Mills
  • Replaceable Head End Mills

Tool Holding


Optimize cutting tool performance with the highest quality, high strength precision shrink fit and collet holders from OSG.

  • Shrink
  • SynchroMaster


Cold Forming Products

OSG specializes in manufacturing superior quality dies and offers an extensive selection of both standard and special tooling to suit all of your external threading applications.

  • Flat Dies
  • Planetary Dies
  • Cylindrical Dies
  • Rack Dies
  • Trim Dies
  • HY-PRO® Bent & Nib Taps
  • Drill Point Dies
  • Die Reconditioning
  • Header Process Monitors


Ensure proper tolerances are met with OSG precision ground Plug Go and No Go gages.

  • Inch
  • Metric