Value Collection MSC-04502571 Spiral Point Tap 2-56 Unc

Product Description

The VALUE COLLECTION MSC-04502571 is a spiral point tap designed for cutting 2-56 UNC internal threads in through-hole applications. Built from high speed steel (HSS) with a bright, uncoated finish, this tap features a bottoming chamfer for threading close to the bottom of a blind hole while maximizing thread engagement. It carries a 2B class of fit and an H2 thread limit, producing threads within standard tolerance ranges for general-purpose fastener assembly. With 2 flutes and a right-hand thread direction, it is suited for use in drill presses, CNC machining centers, and hand tapping operations on small-diameter threaded holes.

This tap is used in light machining, instrument assembly, electronics fabrication, and precision manufacturing where 2-56 UNC threads are required. The bottoming chamfer style makes it appropriate for blind holes where full thread depth near the bottom of the hole is necessary. It is commonly installed by machinists, tool-and-die makers, and assembly technicians working with small fasteners in aluminum, mild steel, brass, and similar machinable materials. The 7/16 inch thread length accommodates typical thread depths found in small mechanical assemblies.

Key Features

• 2-56 UNC thread form for standard small-diameter fastener applications
• Bottoming chamfer allows threading to near full depth in blind holes
• High speed steel construction provides durability across a range of machinable materials
• H2 thread limit and 2B class of fit for standard tolerance general-purpose threading
• Bright uncoated finish suitable for use with cutting fluids and standard tapping lubricants
• Right-hand thread direction compatible with standard tapping equipment and drivers

Compatibility

Designed as a standard replacement or production spiral point tap for any application requiring 2-56 UNC right-hand threads with a bottoming chamfer and 2B class of fit.

Installation Notes

Always use an appropriate tapping lubricant or cutting fluid matched to the workpiece material to extend tap life and improve thread quality. Ensure the tap is properly aligned with the pilot hole before applying torque to prevent breakage, particularly at this small diameter. Back the tap out periodically to clear chips when tapping blind holes. Follow applicable shop safety practices and machine guarding requirements when power tapping.