Value Collection JY4863098 Straight Flute Tap 1-3/16-12 Uns

Product Description

The VALUE COLLECTION JY4863098 is a straight flute bottoming tap designed for cutting 1-3/16-12 UNS internal threads in through-holes and blind holes where full thread depth close to the bottom is required. Manufactured from high-speed steel with a bright, uncoated finish, it delivers reliable cutting performance across a range of workpiece materials. The tap features 4 flutes, an H4 thread limit for controlled tolerance fits, and a right-hand thread direction. Overall length is 4 inches with a thread length of 1.5 inches, making it suitable for standard toolholding setups on manual and CNC machine tools.

This tap is suited for machining and fabrication environments where 1-3/16-12 UNS thread forms are specified — a thread size commonly found in heavy equipment, hydraulic components, and custom mechanical assemblies. The bottoming chamfer style allows the tap to cut threads to within a few threads of a blind hole bottom, which is a common requirement in precision part manufacturing. Machinists, tool and die makers, and maintenance technicians working in metalworking shops will find this tap appropriate for both production and repair threading operations.

Key Features

• Bottoming chamfer for threading close to the bottom of blind holes
• 1-3/16-12 UNS thread form, right-hand direction
• 4 straight flutes for chip clearance in standard threading applications
• H4 thread limit for consistent tolerance control
• High-speed steel construction for durability across common workpiece materials
• Bright, uncoated finish — no additional coating to affect dimensional tolerance

Compatibility

Designed as a standard replacement or production tap for applications requiring a 1-3/16-12 UNS internal thread form in metalworking and fabrication operations.

Installation Notes

Installation should be performed by a qualified machinist or maintenance technician using appropriate tapping fluid for the workpiece material. Ensure the workpiece is properly secured and the tap is aligned perpendicular to the hole before threading begins. Always back off periodically to break chips when tapping blind holes. Follow shop safety practices and machine tool manufacturer guidelines when using powered tapping setups.