Value Collection JY4879086 Hand Tap 2-12 Uns Hss

Product Description

The VALUE COLLECTION JY4879086 is a straight-flute hand tap designed for cutting 2-12 UNS internal threads in a wide range of metalworking applications. Built from high speed steel (HSS) with a bright, uncoated finish, this tap delivers consistent thread form and tool life in general-purpose tapping operations. The plug chamfer — typically 3 to 5 threads — allows entry into through-holes and moderately deep blind holes, making it a versatile choice for production and maintenance work alike. At 5 inches overall length with a 2-inch thread length, the tap provides adequate reach for standard workpiece thicknesses. Six flutes help distribute cutting load and improve chip clearance during hand tapping. Thread limit H6 indicates a controlled tolerance for fit consistency.

This tap is suited for machining shops, maintenance facilities, and toolroom operations where UNS (Unified National Special) thread forms are required. The straight-flute geometry makes it appropriate for use in both through-holes and short blind holes in materials such as mild steel, aluminum, brass, and similar machinable metals. It is designed for hand tapping operations using a standard tap wrench and is not intended for use in power-driven CNC or production tapping machines without operator verification of setup parameters.

Key Features

• 2-12 UNS thread form with H6 thread limit for consistent tolerance control
• Plug chamfer (3-5 thread lead) suits through-holes and moderate-depth blind holes
• 6-flute straight-flute geometry for even cutting load and chip clearance
• High speed steel construction provides durability across a range of machinable metals
• Bright, uncoated finish — no additional coating variables affecting tap dimension
• 5-inch overall length with 2-inch thread length for standard workpiece access

Compatibility

Designed for hand tapping operations requiring a 2-12 UNS thread form. Compatible with standard tap wrenches sized for the tap shank diameter appropriate to a 2-inch nominal thread size.

Installation Notes

This tap should be installed and operated by a qualified machinist or toolroom technician. Secure the workpiece firmly before starting and use a properly sized tap wrench to maintain axial alignment with the drilled hole. Apply appropriate cutting fluid for the workpiece material to reduce friction and extend tool life. Back the tap off periodically to break and clear chips, particularly in deeper holes or harder materials.