Value Collection JY4991006 Straight Flute Tap M2.5x0.45

Product Description

The VALUE COLLECTION JY4991006 is a straight flute tap designed for cutting M2.5x0.45 metric coarse internal threads in ferrous and non-ferrous materials. Built from high-speed steel with a bright uncoated finish, this plug chamfer tap is suited for through-hole and shallow blind-hole tapping operations. The 3-flute design provides a balance of chip clearance and thread form stability at small diameters. With a 0.5-inch thread length and 1.8125-inch overall length, the tool fits standard tap holders and machine spindles used in precision machining and maintenance applications. Machinists, tool and die makers, and maintenance technicians are the primary users.

This tap is used wherever M2.5x0.45 metric coarse threads are required in light mechanical assemblies, instrumentation, and small fastener applications. The plug chamfer — typically 3 to 5 threads of lead — makes it well suited for through-hole tapping by hand or with a tapping machine. The 6H class of fit produces a standard tolerance thread compatible with M2.5 metric fasteners in general-purpose assemblies. The D3 thread limit designates a specific tap oversize that accounts for material springback in common workpiece materials.

Key Features

• M2.5x0.45 metric coarse thread form for standard metric fastener compatibility
• High-speed steel construction provides wear resistance across a range of materials
• Bright uncoated finish suitable for use with cutting oil in hand and machine tapping
• Plug chamfer allows smooth thread lead-in for through-hole applications
• 6H class of fit produces a standard tolerance thread for general-purpose assemblies
• 3-flute geometry balances chip evacuation and thread form accuracy at this diameter

Compatibility

Designed as a general-purpose replacement or stock tap for any application requiring M2.5x0.45 metric coarse internal threads at a 6H class of fit.

Installation Notes

Install in a compatible tap wrench or machine spindle holder rated for the tap shank diameter before use. Always apply an appropriate cutting fluid to reduce heat and extend tool life, particularly in steel or stainless workpieces. Back the tap off periodically during hand tapping to break and clear chips from the flutes. Inspect the tap for chipping or wear before each use, as small-diameter taps are susceptible to breakage if forced into misaligned or undersized pilot holes.