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Silver metal round threading die with adjustment screw, 2-1/2 inch diameter

Drill America

Drill America DWTSMR212-29X1.25 2-1/2" HSS Round Adjustable Die

SKU CH-8J8R-NFEZM

M29×1.25 high-speed steel adjustable round die cuts external threads with two chamfer options

  • High-speed steel construction extends die life
  • Adjustable design allows precise thread fit
  • Chamfered both sides for versatile threading
  • Fine-pitch screw enables smooth size adjustment
  • Bevelled slot suits machine holder use

2-1/2" HSS Round Adjustable Die

The Drill America DWTSMR212-29X1.25 is a high speed steel round adjustable die designed for threading applications. It features a 2-1/2 inch outside diameter and a metric thread size of M29 x 1.25. The tool is intended for users who require improved wear life when cutting external threads on rods or pipes.

Chamfered faces and adjustable screw

Both faces of the die are chamfered to assist with thread starting and finishing. One side offers a 2 to 3 thread chamfer for general threading while the other provides a 1 to 1-1/2 thread chamfer for work close to a shoulder. A fine pitch adjustment screw allows the die halves to expand or contract for precise fit control.

Fits standard die holders

The die includes a beveled slot so it can be used in a machine holder with the adjusting screw removed, letting the holder's own screws control the setting. Installation is straightforward for machinists familiar with adjustable die systems. Users without a compatible 2-1/2 inch holder or experience setting die clearance may find accurate threading difficult.

Highlights

  • High-speed steel construction extends die life
  • Adjustable design allows precise thread fit
  • Chamfered both sides for versatile threading
  • Fine-pitch screw enables smooth size adjustment
  • Bevelled slot suits machine holder use

Specifications

BrandDRILL AMERICA

Questions about this item

How often will the HSS cutting edges need resharpening or replacement when threading M29×1.25 material?

The high-speed steel construction provides extended wear life for M29×1.25 threading; resharpening or replacement depends on workpiece hardness and volume, not a fixed interval.

What limits continuous threading performance with the 2-1/2" adjustable die?

Chip evacuation and heat buildup in the M29×1.25 thread form become the practical limits during sustained cutting; the fine-pitch adjustment screw allows compensation as the die wears.

How much heat does the die generate during all-day M29×1.25 production threading?

Heat rises with cutting speed and material toughness; using cutting fluid and the die's chamfered faces helps manage temperature during extended M29×1.25 runs.

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