Value Collection MSC-04424487 Straight Flute Tap 4-48 Unf

Product Description

The VALUE COLLECTION MSC-04424487 is a straight flute tap designed for cutting internal threads in through-holes and shallow blind holes. Manufactured from high-speed steel (HSS) with a bright, uncoated finish, this tap produces 4-48 UNF right-hand threads and is configured with a plug chamfer for general-purpose starting in pre-drilled holes. With 3 flutes and an H2 thread limit, it delivers consistent thread geometry suited to standard tolerance applications. The overall length is 1-7/8 inches with a thread length of 9/16 inches. Machinists, tool-and-die makers, and maintenance technicians working in metalworking, fabrication, or mechanical assembly will find this tap appropriate for production and repair work.

This tap is suited for threading ferrous and non-ferrous metals in applications where a standard plug chamfer start is appropriate. The plug chamfer, which incorporates 3 to 5 lead threads, allows the tap to be started without excessive axial force, making it practical for both machine tapping and hand tapping operations. The 4-48 UNF thread specification is commonly encountered in instrument-grade fastener applications, small mechanical assemblies, and precision component work where fine-thread pitch is required for stronger thread engagement in thin material sections.

Key Features

• 4-48 UNF thread form with H2 thread limit for standard 2B class-of-fit tolerances
• High-speed steel construction provides durability across a range of workpiece materials
• Plug chamfer design supports both hand tapping and machine tapping in through-holes
• 3-flute configuration promotes chip clearance and consistent thread formation
• Bright, uncoated finish suitable for use with cutting fluid in general machining environments
• Right-hand thread direction — standard for the majority of fastener applications

Compatibility

Designed as a standard-style replacement or stocking tap for any application requiring a 4-48 UNF, 2B class-of-fit, plug chamfer straight flute tap in HSS.

Installation Notes

This tap should be installed and operated by qualified machinists or maintenance technicians familiar with threading operations. Always secure the workpiece firmly and ensure the tap is properly aligned with the pre-drilled pilot hole before applying torque. Apply an appropriate cutting fluid for the workpiece material to extend tool life and improve thread finish. When using in a tapping head or CNC machine, verify spindle speed and feed rate are appropriate for the thread pitch and material before starting the operation.