Description
The Irwin 1/4″ – 28 NF HCS Hexagon Machine Screw Die (9423) is a specialized threading tool crafted for precision and adaptability. This die is engineered to create and repair external machine screw threads with a 1/4-inch diameter and a fine pitch of 28 threads per inch. Made from high carbon steel, it provides the necessary hardness and durability for manual threading on various materials.
KEY FEATURES AND BENEFITS:
- Precision Threading: Cuts clean and accurate 1/4″ – 28 NF (National Fine) threads for secure and proper machine screw fits.
- Versatile Hexagon Shape: Can be driven by a die stock, wrench, or socket, allowing threading in tight or confined spaces.
- High Carbon Steel Construction: Provides hardness and toughness for a reliable, long-lasting cutting edge in hand threading.
- Ideal for Repair and Maintenance: Recommended for restoring damaged threads or creating new ones on various components.
SPECIFICATIONS:
- Thread Size: 1/4″ – 28 NF
- Material: High Carbon Steel (HCS)
- Shape: Hexagon
- Outside Diameter: 1″
- Thickness: 3/8″
- Thread Direction: Right-hand
HOW TO USE:
- Prepare the Workpiece: Securely clamp the rod or bolt in a vice; bevel the end to start the die squarely.
- Mount the Die: Insert the hexagon die into a die stock, wrench, or socket and secure firmly.
- Start the Thread: Place the die squarely on the workpiece end, apply downward pressure, and turn clockwise to begin threading.
- Cut the Thread: Continue turning clockwise with steady pressure; reverse the die a quarter turn after every full turn or two to break chips.
- Finish the Thread: Repeat forward and backward turning until the desired thread length is reached. Remove the die by turning counter-clockwise and clean threads with a brush.
BENEFITS OF USING IRWIN 1/4″ – 28 NF HCS HEXAGON MACHINE SCREW DIE (9423):
- Adaptability through its hexagonal shape allowing multiple driving options.
- Efficient thread cutting and restoration, reducing downtime.
- Durable high carbon steel construction ensures long tool life.
- Produces precise National Fine standard threads for proper fastener fit.
FEATURES:
- Hexagonal body for use with wrench or socket in confined areas.
- Designed for creating right-hand threads.
- Constructed from high carbon steel for durability and sharp cutting ability.
- Engineered to cut 1/4-inch diameter fine threads with 28 threads per inch.
- Suitable for both professional and home workshop use.





Reviews
There are no reviews yet.