Value Collection JY4837480 Straight Flute Tap 8-48 Uns

Product Description

The VALUE COLLECTION JY4837480 is a straight flute tap designed to cut internal threads in a variety of materials. Built from high-speed steel with a bright/uncoated finish, this tap produces right-hand threads to the 8-48 UNS thread standard at a 3B class of fit. The plug chamfer style provides a balanced lead-in, making it suitable for through-hole and moderately deep blind-hole applications. With four flutes and an H2 thread limit, it delivers consistent chip clearance and dimensional accuracy in production and maintenance threading operations. Overall length is 2.125 inches.

This tap is used by machinists, maintenance technicians, and toolroom professionals working with small-diameter UNS threads. The 8-48 UNS designation is common in precision assemblies, instrument hardware, and specialty fastener applications where unified coarse or fine series threads are not specified. The plug chamfer allows the tap to start easily in pre-drilled through-holes and is a standard choice for general-purpose hand or machine tapping setups.

Key Features

• 8-48 UNS thread form with right-hand thread direction
• Plug chamfer provides a moderate lead-in suitable for through-holes and deeper blind holes
• 4 straight flutes promote chip clearance during threading
• 3B class of fit ensures standard internal thread tolerance for typical fastener mating
• H2 thread limit for controlled oversize to compensate for material springback
• High-speed steel construction supports use in a wide range of workpiece materials

Compatibility

Designed as a general-purpose replacement or toolroom tap for applications requiring 8-48 UNS internal threads with a 3B class of fit.

Installation Notes

Tapping should be performed by a qualified machinist or maintenance technician familiar with proper speeds, feeds, and tap alignment. Always use an appropriate tapping fluid for the workpiece material to reduce friction and extend tool life. Ensure the tap is aligned perpendicular to the workpiece surface before engagement. For machine tapping, use a floating tap holder to prevent tap breakage due to misalignment.