Value Collection JY9037359 M28x1 Straight Flute Tap Hss

Product Description

The VALUE COLLECTION JY9037359 is a straight flute tap designed for cutting M28x1 metric fine internal threads in a wide range of materials. Built from high-speed steel (HSS) with a bright, uncoated finish, this tap delivers reliable thread-cutting performance in production and maintenance environments. It features four flutes with a plug chamfer, making it well suited for through-hole and moderately deep blind-hole threading applications. With an overall length of 5.4375 inches and a thread length of 2.5625 inches, the JY9037359 is proportioned for use in standard tap handles and machine tapping setups alike. Thread direction is right hand, and the tool carries a 6H class of fit with a D5 thread limit for consistent, on-tolerance threads.

This tap is intended for machinists, toolmakers, and maintenance technicians working with metric fine thread specifications. The M28x1 pitch is commonly found in precision assemblies, hydraulic fittings, and mechanical components where a finer thread engagement is required than the coarse M28 standard. It is appropriate for use in hand-tapping operations and compatible with standard tapping machines and CNC machining centers equipped for rigid or floating tap holders. Applications span general metalworking shops, MRO facilities, and field maintenance situations requiring accurate metric fine thread repair or fabrication.

Key Features

• M28x1 metric fine thread form for precision thread-cutting applications
• Four-flute straight flute geometry provides stable cutting action in most ferrous and non-ferrous materials
• Plug chamfer (3-5 thread lead) suits both through-hole and moderately deep blind-hole threading
• High-speed steel construction offers good wear resistance across a broad range of workpiece materials
• 6H class of fit with D5 thread limit ensures on-tolerance threads compatible with standard metric fine fasteners
• Bright, uncoated finish allows easy visual wear inspection during service

Compatibility

Designed as a standard replacement or new-installation tap for M28x1 metric fine thread applications. Compatible with conventional tap handles, tapping attachments, and CNC rigid tapping setups configured for the M28 shank and overall length profile.

Installation Notes

This tool should be installed and operated by qualified machinists or maintenance technicians familiar with tapping procedures and cutting tool safety. Secure the tap firmly in a tap wrench or machine holder before use and ensure the workpiece is clamped or fixtured to prevent movement. Apply an appropriate cutting fluid for the workpiece material to reduce heat and extend tool life. Reverse the tap periodically when hand-tapping to break chips and prevent binding or breakage.