Value Collection JY4995056 M28x1.50 Straight Flute Tap

Product Description

The VALUE COLLECTION JY4995056 is a straight flute tap designed to cut M28x1.50 metric fine internal threads in a variety of workpiece materials. With 4 flutes and a plug chamfer, it is suited for through-hole and moderately deep blind-hole tapping applications. The tap is manufactured from high-speed steel with a bright, uncoated finish, offering solid wear resistance across general machining operations. It produces 6H class of fit threads, the standard tolerance for most metric bolted assemblies. Overall length is 4 inches with a 2.5-inch thread length. Machinists and tool-and-die technicians use this tap in manual tap handles, tap wrenches, and CNC tapping operations.

This tap is intended for right-hand metric fine thread applications where a 28 mm nominal diameter at 1.50 mm pitch is required. Metric fine threads at this size are common in automotive, hydraulic, and precision mechanical assemblies where vibration resistance and precise thread engagement are critical. The plug chamfer — typically 3 to 5 threads of lead — allows the tap to start in a pre-drilled hole and is appropriate for through-hole tapping or blind holes with sufficient relief at the bottom. It is a shop-floor staple for job shops, maintenance departments, and production machining environments.

Key Features

• M28x1.50 metric fine thread form for precision and vibration-resistant assemblies
• 4 straight flutes provide chip clearance and consistent thread form
• Plug chamfer style for through-hole and standard blind-hole applications
• 6H class of fit meets standard metric thread tolerance requirements
• High-speed steel construction delivers durability across common workpiece materials
• Bright, uncoated finish — compatible with standard cutting fluids
• Right-hand thread direction; no coolant-through feature

Compatibility

Designed as a standard metric fine tap for use in any tap wrench, T-handle, or CNC rigid tapping setup accepting a tap of this shank size and overall length; consult toolholder specifications before use.

Installation Notes

Always drill the correct metric fine tap drill diameter before tapping to achieve the specified 6H thread fit. Secure the workpiece firmly and use an appropriate cutting fluid for the workpiece material to extend tap life and improve thread quality. Apply consistent, controlled torque when hand-tapping; back off periodically to break chips. For machine tapping, verify spindle speed and feed rate are appropriate for the tap diameter and workpiece material before engaging.