Value Collection MSC-04517322 Spiral Point Tap 8-32 Unc

Product Description

The VALUE COLLECTION MSC-04517322 is a spiral point tap designed to cut 8-32 UNC threads in through-hole applications. It features a plug chamfer style, which distributes the cutting load gradually across the leading threads, making it well suited for production tapping and general machine shop work. Manufactured from high speed steel (HSS) with a bright, uncoated finish, this tap runs effectively in a wide range of common metals and plastics. The H3 thread limit keeps finished threads within close tolerance for reliable 2B class of fit results. Machinists, tool and die makers, and maintenance technicians use this style of tap daily on drill presses, CNC machining centers, and manual mills.

This tap is sized for the 8-32 UNC thread form, one of the most common fastener threads found in light mechanical assemblies, electrical enclosures, instrumentation panels, and general fabrication. The plug chamfer and two-flute design push chips forward through the hole, which is the standard approach for tapping blind or through holes where chip evacuation ahead of the tap is acceptable. It is a practical, all-around choice for shops that need reliable threading performance in steel, aluminum, brass, and similar machinable materials.

Key Features

• 8-32 UNC thread form with H3 thread limit for consistent 2B class of fit tolerances
• Plug chamfer distributes cutting load across the leading threads for smooth entry and reduced tap breakage
• Two-flute spiral point geometry pushes chips forward, keeping the cutting zone clear in through-hole applications
• High speed steel construction provides good wear resistance across a broad range of workpiece materials
• Bright, uncoated finish allows direct visual inspection of the cutting edges before and after use
• Right-hand thread direction, compatible with standard tapping heads and tap handles

Compatibility

Designed as a standard OEM-style replacement or general-use spiral point tap for any application requiring 8-32 UNC internal threads with a 2B class of fit.

Installation Notes

Spiral point taps are installed by a machinist or tool operator using a tapping head, tap wrench, or CNC rigid-tapping cycle. Always ensure the tap drill hole is sized correctly for the desired thread percentage before beginning. Apply cutting fluid appropriate to the workpiece material to extend tap life and improve thread finish. Never force a tap against resistance — back off periodically to break and clear chips when operating conditions require it.