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Round silver metal die with knurled edges and adjustment slot

Drill America

Drill America DWTSR112-51628 5/16"-28 HSS Round Adjustable Die

SKU CH-T61Q-VZYK2

A 5/16"-28 high-speed steel round adjustable die for threading pipes and rods with improved wear life

  • High Speed Steel construction for extended wear life
  • Adjustable fine-pitch screw allows precise thread fit
  • Chamfered both sides for starting and shoulder threading
  • 5/16"-28 thread size suits specific fastening needs
  • California Proposition 65 warning applies to this product

Threading die for 5/16"-28 threads

This high-speed steel round adjustable die cuts 5/16"-28 threads on pipe or rod. It suits maintenance and fabrication tasks where a precise external thread is required. The die is supplied new and ready for use in a compatible die stock or machine holder.

Chamfered faces and fine-pitch adjustment

Both faces are chamfered: one side offers a 2 to 3 thread lead for starting, the other a 1 to 1-1/2 thread lead for threading close to a shoulder. A fine-pitch screw opens or closes the die for fit adjustment, and the slot is beveled so the screw can be removed when the die is held in a machine holder.

Proposition 65 warning applies

The product carries a California Proposition 65 notice for chemicals linked to cancer and reproductive harm. Users should follow safe-handling practices such as wearing gloves and avoiding dust inhalation. The die is not intended for applications that require a different thread standard or larger capacity.

Highlights

  • High Speed Steel construction for extended wear life
  • Adjustable fine-pitch screw allows precise thread fit
  • Chamfered both sides for starting and shoulder threading
  • 5/16"-28 thread size suits specific fastening needs
  • California Proposition 65 warning applies to this product

Specifications

BrandDRILL AMERICA

Questions about this item

What thread standard does the 5/16"-28 die follow?

It cuts a 5/16 inch diameter thread with 28 threads per inch using high-speed steel.

What holder size fits the 1-1/2 inch outside diameter?

The die measures 1-1/2 inch across and fits standard round-die stocks or machine holders made for that diameter.

How do you adjust the thread fit using the fine-pitch screw?

Turn the adjusting screw to open the die for a looser thread or let it spring closed for a tighter fit; remove the screw when using a holder with built-in adjustment.

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