Value Collection MSC-04489464 Straight Flute Tap 1-1/4-12 Unf

Product Description

The VALUE COLLECTION MSC-04489464 is a straight flute tap designed for cutting 1-1/4-12 UNF internal threads in a wide range of materials. Built from high-speed steel (HSS) with a bright uncoated finish, this tap delivers reliable performance in general-purpose threading applications. The bottoming chamfer allows threading close to the bottom of a blind hole, making it well suited for jobs where full thread depth is required near the base of the bore. With 6 flutes and an H4 thread limit, it produces accurate 3B class of fit threads with consistent dimensional control across production and repair work.

This tap is used in machining, manufacturing, and maintenance environments where 1-1/4-12 UNF threads are required. The bottoming chamfer configuration is especially common when working with blind holes that demand maximum thread engagement. Right-hand cutting direction and a 1.5-inch thread length accommodate standard threading depths in ferrous and non-ferrous workpieces. Machinists, toolroom technicians, and maintenance professionals will find this tap appropriate for both manual and low-speed machine tapping operations.

Key Features

• Bottoming chamfer for threading close to the bottom of blind holes
• 6-flute design provides better chip distribution and improved thread finish
• H4 thread limit ensures accurate 3B class of fit compliance
• High-speed steel construction for durability across a broad range of materials
• Bright uncoated finish suitable for general-purpose threading without specialized coatings
• Right-hand cutting direction, standard for UNF threading applications

Compatibility

Designed as a straight flute tap for cutting 1-1/4-12 UNF right-hand internal threads with a 3B class of fit in standard machining and maintenance applications.

Installation Notes

Secure the workpiece firmly before tapping to prevent movement during thread cutting. Apply an appropriate cutting fluid to extend tool life and improve thread quality. Use a tapping machine, drill press, or tap wrench suited to the 1-1/4-inch tap size, and advance at a controlled, consistent rate. Back the tap out periodically to break chips and prevent binding, especially in deeper holes.