Value Collection JY4836649 6-64 Uns Hand Tap Hss 3-flute

Product Description

The VALUE COLLECTION JY4836649 is a straight-flute hand tap designed to cut 6-64 UNS internal threads in a range of materials. Built from high speed steel (HSS) with a bright, uncoated finish, it delivers consistent cutting performance for manual tapping operations. The plug chamfer — typically 3 to 5 threads of lead — makes it well suited for through-holes and blind holes with sufficient depth clearance. At 2 inches overall length, it fits standard tap wrenches used by machinists, maintenance technicians, and tool-and-die professionals. The 3B class of fit and H3 thread limit ensure a snug, accurate thread that meets UNS tolerance requirements.

This tap is intended for hand-threading operations in production, repair, and maintenance environments. The 6-64 thread is a fine-pitch designation used in small mechanical assemblies, instrumentation, and precision hardware. The straight-flute geometry makes it appropriate for through-hole and short blind-hole applications in softer metals, plastics, and similar materials where chip management is straightforward. It is sold as an individual tap and does not require a specific tap set holder beyond a standard adjustable tap wrench sized for its shank.

Key Features

• 6-64 UNS thread size with plug chamfer for easy thread starting in through-holes and open blind holes
• High speed steel construction provides hardness and wear resistance for manual tapping operations
• Bright uncoated finish — no coating buildup to affect thread tolerance in tight-fit applications
• 3B class of fit with H3 thread limit for accurate, standardized UNS thread profiles
• 3-flute straight-flute design suits through-hole tapping in softer metals and plastics
• Right-hand thread direction, the standard orientation for conventional fastener threads

Compatibility

Designed as an OEM-style hand tap for use in any application requiring 6-64 UNS right-hand internal threads, compatible with standard adjustable tap wrenches sized for the tap shank diameter.

Installation Notes

This tap is installed by a machinist or maintenance technician using a standard adjustable tap wrench. Before tapping, ensure the workpiece is secured and a correctly sized pilot hole has been drilled per UNS tap drill recommendations. Apply cutting fluid appropriate for the workpiece material to reduce friction and extend tap life. Avoid excessive torque or forcing the tap, as the small thread size makes the tool susceptible to breakage if binding occurs.