Accupro T1640343 Spiral Point Tap 10-32 3 Flutes Plug

Product Description

The ACCUPRO T1640343 is a spiral point tap designed for cutting 10-32 unified fine threads in through-hole applications. Built from HSS-E vanadium high speed steel with an oxide finish, this tap delivers improved wear resistance and heat tolerance compared to standard HSS tooling. The plug chamfer style eases entry into the hole and distributes cutting load across the leading threads. With a H3 thread limit and 2B class of fit, it produces threads suitable for standard fastener assemblies in metal fabrication, maintenance, and machine shop environments. Machinists, maintenance technicians, and tool and die professionals are the typical end users.

This tap is suited for through-hole tapping operations on steel, aluminum, and similar machinable metals. The spiral point geometry pushes chips forward ahead of the tap rather than packing them in the flutes, making it well matched to production tapping and CNC applications where chip evacuation is a priority. The right-hand thread direction and 3-flute configuration are standard for general-purpose 10-32 threading work on manual mills, drill presses, and tapping heads.

Key Features

• HSS-E vanadium construction for increased hardness and edge retention over standard M2 HSS
• Oxide finish provides mild lubricity and corrosion resistance during storage and use
• Plug chamfer distributes entry load across multiple threads, reducing tap breakage risk
• Spiral point design pushes chips forward for clean through-hole tapping
• H3 thread limit with 2B class of fit meets standard fastener assembly tolerances
• Right-hand, 3-flute geometry compatible with standard tapping chucks and holders

Compatibility

Designed as an OEM-style replacement tap for standard 10-32 through-hole tapping operations. Fits tapping chucks, collet holders, and quick-change tapping heads sized for a 0.194-inch shank diameter.

Installation Notes

Installation should be performed by a qualified machinist or maintenance technician using a properly aligned tapping chuck or rigid tapping setup. Ensure the workpiece is securely clamped and the tap is driven on-axis with the drilled pilot hole to prevent breakage. Apply cutting fluid appropriate for the workpiece material before and during the tapping operation. Do not reverse the tap abruptly without backing it out carefully to clear chips.