Product Name: Threading Die (9/16-18 UNF) – Part No. 10078301

Description:
This component is a precision threading die specifically designed for cutting 9/16-18 UNF (Unified Fine) threads onto high-pressure stainless steel tubing ends in waterjet cutting systems . The die is used in conjunction with hand threading tool assemblies (e.g., P/N 05108881 for .56 size) to prepare tubing for high-pressure connections .

The "9/16-18" designation indicates a nominal diameter of 9/16 inch with 18 threads per inch. The die features a 60-degree thread profile angle and is manufactured from high-speed steel (HSS) or hardened tool steel for durability and wear resistance . It is designed for right-hand cutting operation and includes a split-body configuration with tapered lead chamfers for easy thread initiation and clean chip evacuation .

Threading is performed after the tubing has been properly coned with a coning tool. The die must be used with appropriate cutting oil to prevent galling of the stainless steel and to extend tool life. This die is compatible with 60,000-94,000 PSI (approximately 4,137-6,480 bar) waterjet systems and is interchangeable with major OEM part numbers across KMT, Flow, BFT, and WSI waterjet systems .

Applications:

• Cutting 9/16-18 UNF threads on 9/16 inch high-pressure tubing ends for waterjet systems

• Used as a replacement cutting element for Hand Threading Tool Assembly (.56, P/N 05108881) 

• Essential for fabricating custom-length high-pressure lines for system repairs and modifications

• Suitable for preparing tubing for systems operating at pressures up to 60,000-94,000 PSI 

• Compatible with KMT, Flow, BFT, WSI, and other standard waterjet systems 

Features:

• 9/16-18 UNF Thread Specification: Standard thread size for 9/16 inch high-pressure waterjet connections 

• Precision-Ground Threads: Manufactured to exacting tolerances (UNF 2A thread tolerance class) for clean, accurate threads 

• High-Speed Steel Construction: Made from durable HSS or hardened tool steel to withstand repeated use on work-hardened stainless steel tubing 

• 60-Degree Thread Profile: Conforms to UNF thread standards (ASME B1.1) for compatibility with standard high-pressure fittings 

• Split-Body Design: Closed, pre-slit form with tapered lead chamfers on both sides for easy thread initiation and clean swarf evacuation 

• Right-Hand Cutting: Standard right-hand thread cutting direction 

• Replaceable Wear Component: The die is a consumable part of the threading tool set and is designed to be replaced when dull 

Maintenance:

Usage Guidelines:

• Sequence (Critical): Tubing must be coned with a coning tool prior to threading. Threading cannot be performed on unconed tubing ends 

• Proper Setup: Secure the coned tubing in a tube vise (P/N 05108774 for 9/16" tubing) . The recommended extension length for 9/16" tubing is 1.25-1.50 inches (31.8-38.1 mm)

• Use Cutting Oil (Critical): Always apply a liberal amount of medium-weight cutting oil with high sulfur content to the tube and the threading die during the threading process . This lubricates the cutting action, prevents galling (seizing) of the stainless steel, and significantly extends the life of the die

• Proper Cutting Technique: Grip the handles firmly, apply steady pressure, and turn the tool counter-clockwise. Approximately every half turn, reverse direction to break off and remove chips 

• Maximum Thread Length: For 9/16" HP tubing, the maximum thread length is 0.86 inches (21.8 mm) 

Inspection & Care:

• Inspect for Wear: Regularly inspect the cutting edges of the die. If the die requires excessive force to cut, produces rough threads, or fails to cut clean threads, it is likely dull and must be replaced immediately 

• Clean After Use: After each use, thoroughly clean the die of metal shavings, cutting oil, and debris to prevent rust and maintain precision. Use compressed air or a small brush to remove chips from the die teeth

• Check for Damage: Inspect the die for chipped or broken teeth before each use; a damaged die will not produce proper threads and must be replaced 

• Storage: Store the complete tool set in a clean, dry, protective case to prevent damage to the precision die

• Replace, Do Not Sharpen: When the die becomes dull, it should be replaced with a new OEM die. Attempting to sharpen the die can alter its critical geometry, leading to improper thread profiles and potential high-pressure leaks

• Proper Die Orientation: When installing a new die, ensure proper orientation within the threading tool assembly as specified in the equipment service manual

• Full Depressurization (Critical): This tool is for preparing new or replacement tubing offline. Never use it on a pressurized system. Always follow lockout/tagout procedures and ensure the waterjet system is fully depressurized before any maintenance 

• Anti-Seize Application: When assembling high-pressure connections, apply high-pressure anti-seize lubricant to threads to prevent galling and ensure proper torque

Cross-Reference Information:

• OEM Part Number: 10078301

• Table Reference: Table 12-37, High Pressure Threading Tools (Item 1 for .56 size) 

• Thread Specification: 9/16-18 UNF

• Right-hand cutting 

• Associated Components: Hand Threading Tool Assembly (05108881), Tube Vise (05108774)

• Maximum Thread Length: 0.86 inches (21.8 mm)

• Recommended Cutting Oil: Medium-weight cutting oil with high sulfur content

• Compatible with: KMT, Flow, BFT, WSI, and other standard waterjet systems