Value Collection MSC-04424495 Straight Flute Tap 4-48 Unf

Product Description

The VALUE COLLECTION MSC-04424495 is a straight flute tap designed for cutting 4-48 UNF internal threads in a wide range of materials. Built from high-speed steel (HSS) with a bright, uncoated finish, it delivers reliable thread-cutting performance in production and repair applications. The bottoming chamfer allows threading close to the bottom of a blind hole, making it the go-to choice when full thread depth is required near the base of a bore. With 3 flutes and an H2 thread limit, this tap maintains consistent dimensional control for a 2B class of fit.

This tap is suited for machinists, tool-and-die technicians, and maintenance professionals working on small-diameter fastener applications. The 4-48 UNF thread form is common in precision instruments, electronics hardware, and fine-thread mechanical assemblies where a finer pitch is needed for greater holding strength in thin material. The compact overall length of 1.875 inches makes it easy to handle in both manual tap wrenches and machine tapping setups.

Key Features

• Bottoming chamfer for threading to the bottom of blind holes
• High-speed steel construction for durability across a range of workpiece materials
• 3-flute design provides good chip clearance in through and blind hole applications
• H2 thread limit ensures consistent 2B class of fit tolerances
• Right-hand thread direction, standard for most UNF applications
• Bright, uncoated finish suitable for use with standard cutting fluids

Compatibility

Designed for cutting 4-48 UNF internal threads as an OEM-style or replacement tap for use in manual tap wrenches and machine tapping operations requiring a bottoming chamfer and 2B class of fit.

Installation Notes

This tap should be installed and used by machinists or qualified technicians familiar with threading operations. Always secure the workpiece before tapping and use an appropriate cutting fluid to extend tap life and improve thread quality. For blind holes, advance the tap carefully in short increments, backing off frequently to break chips and prevent binding. Inspect the tap for wear or damage before each use, as a worn or chipped HSS tap can result in thread damage or breakage in the bore.