Value Collection JY4870085 Hand Tap 1-1/4-10 Uns Plug Hss

Product Description

The VALUE COLLECTION JY4870085 is a straight-flute hand tap designed for cutting 1-1/4-10 UNS internal threads in a wide range of materials. Built from high speed steel (HSS) with a bright, uncoated finish, this tap delivers reliable cutting performance in general-purpose threading applications. It features a plug chamfer, which provides a gradual lead-in of several threads to ease starting and reduce torque requirements during hand or machine tapping. The 4-flute design promotes chip management and helps maintain thread accuracy. With an overall length of 5.75 inches, this tap is sized for use with standard tap wrenches and compatible tapping fixtures used in maintenance, toolroom, and production environments.

This tap is suited for threading operations in metalworking shops, maintenance facilities, and industrial production settings where UNS (Unified National Special) thread profiles are required. The 1-1/4-10 thread size is common in heavy mechanical assemblies, large fastener applications, and custom tooling work. The plug chamfer style makes it appropriate for through-hole and deep blind-hole threading where a starting tap is used first or where the plug can serve as the primary threading tool. Licensed machinists, tool and die makers, and maintenance technicians are the primary users.

Key Features

• 1-1/4-10 UNS thread size for specialized unified national special thread profiles
• High speed steel construction for durability across a broad range of workpiece materials
• Bright, uncoated finish for general-purpose use without added coating cost
• Plug chamfer with gradual lead-in reduces starting torque and improves thread engagement
• 4-flute straight-flute geometry supports chip evacuation and consistent thread form
• Right-hand thread direction, Class 3B fit, H4 thread limit for precision tolerance control

Compatibility

Designed as an OEM-style hand tap for use in standard tap wrenches and tapping fixtures compatible with 1-1/4-10 UNS thread applications.

Installation Notes

Hand taps should be installed and operated by qualified machinists or maintenance technicians familiar with thread-cutting procedures. Power down and lock out any machine tool before securing the tap in a chuck or holder. Apply an appropriate cutting fluid for the workpiece material to reduce heat buildup and extend tap life. Do not force the tap if resistance increases unexpectedly — back off to break chips before continuing, and inspect the tap for wear or damage before reuse.