Value Collection MSC-04489159 Straight Flute Tap 1-14 Uns

Product Description

The VALUE COLLECTION MSC-04489159 is a straight flute bottoming tap designed for cutting internal threads in through-holes and blind holes where full thread depth close to the bottom is required. Made from high-speed steel with a bright, uncoated finish, this tap produces 1-14 UNS right-hand threads to a 3B class of fit with an H4 thread limit. It features 4 flutes for efficient chip clearance and is suited for use in metalworking, maintenance, and repair applications. Machinists and tool-and-die technicians rely on this style of tap when threading operations demand tight tolerances and consistent thread form near the bottom of a bore.

This tap is intended for threading operations in ferrous and non-ferrous metals where a 1-14 UNS thread form is specified. The bottoming chamfer style makes it the correct choice for finishing threads in blind holes after a taper or plug tap has started the thread. It is commonly used in production machining, repair shops, and maintenance environments requiring precise internal threading to unified national special standards.

Key Features

• Bottoming chamfer allows threading to near the bottom of blind holes
• High-speed steel construction provides hardness and wear resistance for general-purpose tapping
• 4 flutes support chip evacuation during the threading process
• 3B class of fit delivers standard internal thread tolerance suitable for most mechanical assemblies
• H4 thread limit ensures consistent oversize compensation for plated or coated fastener applications
• Bright, uncoated finish is suitable for use with cutting fluids across a range of workpiece materials

Compatibility

Designed as a standard replacement or production tap for applications requiring a 1-14 UNS internal thread form with a 3B class of fit.

Installation Notes

This tap should be installed in a rigid tapping holder or tap wrench appropriate for the 1-inch tap size. Always apply a suitable cutting fluid matched to the workpiece material before and during tapping. Power down and secure any machine spindle before loading or removing the tap. Ensure the starting threads have been cut with a taper or plug tap before using this bottoming tap in a blind hole to avoid tool breakage.