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Round adjustable die, 5/16"-80 thread, high-speed steel, silver finish

Drill America

Drill America DWTSR1-51680 5/16"-80 HSS Round Adjustable Die

SKU CH-T2W7-KWYC5

A 5/16"-80 high-speed steel round adjustable die for threading with improved wear life

  • High-speed steel construction resists wear during threading
  • Adjustable fine-pitch screw sets precise thread fit
  • Chamfered both faces for starting and shoulder work
  • 5/16"-80 thread size matches specific fastening needs
  • California Proposition 65 warning applies to this product

Drill America 5/16"-80 HSS Die

The Drill America DWTSR1-51680 is a high-speed steel round adjustable die designed for cutting 5/16"-80 threads. It suits machinists and maintenance technicians who need a durable threading tool with extended wear life for pipe and tubing applications.

Verify thread specs and holder fit

Before ordering, confirm the workpiece requires a 5/16"-80 thread form and that your die stock or machine holder accepts a 1" outside diameter round die. The adjusting screw can be removed for holder-based adjustment, so ensure your holder has the necessary adjusting screws.

Chamfered faces for versatile starts

The die is chamfered on both faces: one side offers a 2 to 3 thread chamfer for standard threading starts, while the other provides a 1 to 1-1/2 thread chamfer for threading close to a shoulder. This dual-chamfer design changes how the tool engages the workpiece in tight spaces.

Highlights

  • High-speed steel construction resists wear during threading
  • Adjustable fine-pitch screw sets precise thread fit
  • Chamfered both faces for starting and shoulder work
  • 5/16"-80 thread size matches specific fastening needs
  • California Proposition 65 warning applies to this product

Specifications

BrandDRILL AMERICA

Questions about this item

Does the Drill America DWTSR1-51680 die come with a holder or handle, or must those be purchased separately?

The die is sold as a single 5/16"-80 HSS round adjustable die; a die stock or machine holder is not included and must be bought separately.

Is the 5/16"-80 size the only thread option available for this Drill America model?

The DWTSR1-51680 is specified only for 5/16"-80 threads; other diameters or pitches would require a different die model.

How does the 1" outside diameter affect use in a standard die stock?

The 1" OD fits common 1" die stocks, and the adjustable screw lets you fine-tune thread fit once the die is clamped in the holder.

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