Value Collection JY4942645 Straight Flute Tap 2-64 Unf

Product Description

The VALUE COLLECTION JY4942645 is a straight flute tap designed to cut internal left-hand threads in a 2-64 UNF thread form. Built from high-speed steel with a bright, uncoated finish, this plug chamfer tap is suited for hand tapping and light machine tapping operations in soft to medium-hardness materials. It features 3 flutes and a 2B class of fit with an H2 thread limit, making it appropriate for standard commercial-tolerance threaded holes. The 1.75-inch overall length fits standard tap handles and collet-style holders used in production and maintenance environments. Machinists, tool and die makers, and maintenance technicians working with fine-pitch left-hand thread applications will find this tap a practical choice.

This tap is used in applications requiring left-hand threaded fastener retention, including assemblies where counter-rotation would loosen a standard right-hand thread. It is appropriate for use in metals such as aluminum, mild steel, and brass in both job shop and maintenance, repair, and operations (MRO) settings. The plug chamfer style suits through-hole tapping and is the standard starting point for most general tapping work. It is sized for the 2-64 UNF thread standard, which is a fine-pitch series commonly found in small mechanical assemblies and instrument components.

Key Features

• Left-hand thread direction for applications requiring reverse-threaded fastening
• 2-64 UNF thread form with H2 thread limit for consistent 2B class of fit tolerance
• High-speed steel construction provides durability across a range of workpiece materials
• Bright, uncoated finish suitable for use with standard cutting fluids
• Plug chamfer style works for through-hole and deep blind-hole entry tapping
• 3-flute design balances chip clearance and thread form support in small-diameter tapping

Compatibility

Designed for use in standard tap handles, T-handles, and machine collets sized for small-diameter taps used in 2-64 UNF left-hand thread applications.

Installation Notes

This tap is installed by machinists or maintenance technicians using a properly sized tap wrench or machine holder. The correct tap drill size for the 2-64 UNF thread form must be used prior to tapping to avoid breakage in this small diameter. Apply appropriate cutting fluid for the workpiece material, and back the tap out periodically to clear chips from the flutes. Never force the tap if resistance increases — 2-64 is a fine, small-diameter thread and is susceptible to breakage under side load or excessive torque.