Value Collection JY4990651 M2x0.25 Straight Flute Tap

Product Description

The VALUE COLLECTION JY4990651 is a straight flute tap designed for cutting M2x0.25 metric fine internal threads in through-holes and blind holes where chip evacuation is manageable. Built from high-speed steel with a bright, uncoated finish, this tap delivers consistent thread geometry in a range of workpiece materials. The plug chamfer — 3 to 5 threads of lead — makes it suitable for through-hole applications and for starting threads in blind holes with adequate depth. With 3 flutes and a D3 thread limit, the tap maintains dimensional accuracy for 6H class-of-fit threads, the standard tolerance for general-purpose metric fastener applications.

This tap is suited for machining, maintenance, and repair work in shop environments where small-diameter metric fine threads are required. The M2x0.25 designation is common in precision instrument work, electronics hardware, and small mechanical assemblies. It is typically used in manual tapping operations with a tap handle or in light-duty machine tapping setups. The 1.75-inch overall length and 0.4375-inch thread length make it appropriate for shallow thread engagement at the M2 scale.

Key Features

• M2x0.25 metric fine thread form for precision small-diameter threading
• Plug chamfer provides 3-5 thread lead — suited for through-holes and sufficient-depth blind holes
• High-speed steel construction offers good hardness and wear resistance for general shop use
• 6H class of fit meets standard tolerance requirements for metric fastener threads
• D3 thread limit controls oversize to maintain accurate fit
• 3 straight flutes allow for use in both hand and light machine tapping

Compatibility

Designed as a standard straight flute tap for M2x0.25 metric fine thread applications in manual tap handles and compatible tapping heads sized for small-diameter taps.

Installation Notes

Tap installation should be performed by a qualified machinist or maintenance technician familiar with proper tapping procedures. Always use the correct tap drill size for M2x0.25 threads before tapping, and apply cutting fluid appropriate to the workpiece material to reduce heat and extend tool life. Do not force the tap — back off periodically to break chips and prevent tap breakage. Secure the workpiece firmly before beginning to ensure thread alignment.