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Round silver metal threading die with adjustment slot

Drill America

Drill America DWTSR2-7830 7/8"-30x2" OD HSS Round Adjustable Die

SKU CH-5RMA-FCMQH

A high-speed steel round adjustable die cuts 7/8"-30 threads with chamfered faces for shoulder work

  • High-speed steel construction extends die wear life
  • Adjustable fine-pitch screw enables precise thread fit
  • Dual chamfers allow threading and shoulder work
  • 7/8"-30 thread specification matches exact requirements
  • California Proposition 65 warning applies to this product

Threading die for 7/8"-30 pipe

This high-speed steel adjustable die cuts external threads on pipe or tubing with a 7/8"-30 pitch. The round design fits standard die stocks and machine holders for manual or powered threading work. Chamfers on both faces allow starting threads and cutting close to a shoulder.

Replaces worn or fixed-size dies

An adjustable die compensates for wear by opening or closing via a fine-pitch screw, extending service life compared with solid dies. The jump is worth it when thread fit must be tightened over time or when a single die must cover slight diameter variation.

Limited to 7/8"-30 thread form

The die only produces this specific thread size and pitch; it cannot cut other diameters or thread standards. California Proposition 65 warnings apply because the product contains chemicals known to cause cancer and reproductive harm.

How it compares

Measured against everything we stock in Garden Hoses & Pipe Tubing, at today’s prices. Recalculated every night.

Price $57.99
Pricier than about 79% of the 973 comparable items (median $21.99).

Specifications

Product
Brand nameDRILL AMERICA

Questions about this item

What die holder or handle accepts the 2" OD round body?

Use a standard 2" outside-diameter die stock or machine holder that clamps the round body; the beveled slot lets you remove the adjusting screw for holder-based adjustment.

Which side of the die do I start threading with for a through-hole?

Start with the 2-to-3-thread chamfer side; it guides the die onto the rod and cuts the full thread form before the finer chamfer engages.

When should I replace this HSS die?

Replace it when the cutting edges no longer produce clean threads or when the adjustment screw can no longer open the die enough for the 7/8"-30 pitch.

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