Value Collection MSC-04541256 Spiral Point Tap 5/16-24 Unf

Product Description

The VALUE COLLECTION MSC-04541256 is a spiral point tap designed for cutting right-hand internal threads in through-hole and blind-hole applications. Built from high speed steel (HSS) with a bright, uncoated finish, this tap features a bottoming chamfer that allows threading close to the bottom of a hole. The 5/16-24 UNF thread form and H3 thread limit make it suited for close-tolerance work where a 3B class of fit is required. With 2 flutes and a 1-inch thread length, it is a straightforward, reliable tool for machinists, maintenance technicians, and tool-and-die professionals working in metal fabrication and repair environments.

This tap is used in applications requiring fine unified thread form at 5/16-inch diameter, including machine components, fastener repairs, and precision assemblies in manufacturing, maintenance, and industrial settings. The bottoming chamfer style allows threading to within a few threads of the bottom of a blind hole, making it especially useful when full thread depth near the base of a hole is needed. It is sold individually and is appropriate for use in hand tapping or machine tapping setups where HSS tooling meets the material requirements.

Key Features

• Bottoming chamfer for threading close to the bottom of blind holes
• High speed steel construction provides good wear resistance across common workpiece materials
• H3 thread limit holds a 3B class of fit for standard close-tolerance threading
• Bright, uncoated finish — no coating buildup to affect thread dimensions
• Right-hand thread direction, 2-flute design
• 1-inch thread length accommodates typical through and blind hole depths at this diameter

Compatibility

Designed as an OEM-style replacement or standard tooling option for any application requiring a 5/16-24 UNF bottoming spiral point tap with H3 thread limit and 3B class of fit.

Installation Notes

This tap should be installed and used by machinists or maintenance technicians familiar with tapping operations. Always ensure the workpiece is securely fixtured and the tap is properly aligned to the drilled hole before beginning. Apply appropriate cutting fluid for the workpiece material to extend tool life and improve thread quality. When using in a machine tapping setup, confirm that the tap holder provides adequate float to prevent thread distortion or tap breakage.