Accupro T1640283 Spiral Point Tap 8-32 Plug 2B Vanadium Hss

Product Description

The ACCUPRO T1640283 is a spiral point tap designed for cutting 8-32 unified coarse threads in through-hole applications. Built from HSS-E vanadium high speed steel with an oxide finish, this tap delivers improved heat resistance and lubricity compared to standard HSS tooling. It features a plug chamfer for progressive thread engagement and a right-hand cutting direction. With a 2B class of fit and H3 thread limit, it produces threads within standard tolerance for general mechanical assembly. Licensed machinists, toolroom operators, and maintenance technicians use this tap in manual and CNC tapping operations where consistent thread form and tool life are priorities.

The T1640283 is suited for tapping 8-32 threads in ferrous and non-ferrous materials in production and maintenance environments. The plug chamfer makes it the standard choice for through-hole tapping where the tap can pass completely through the workpiece. Three flutes provide chip clearance and cutting edge support. The oxide finish helps reduce friction and built-up edge during the cut, extending tool life in moderate-speed operations on steel, aluminum, and similar materials.

Key Features

• 8-32 thread size with H3 thread limit for consistent 2B class of fit
• HSS-E vanadium construction for improved wear resistance over standard M2 HSS
• Plug chamfer for progressive engagement in through-hole tapping
• Oxide finish reduces friction and extends tool life in moderate-speed applications
• Three flutes with right-hand cutting direction for standard tapping setups
• No coolant-through requirement, compatible with flood coolant or cutting oil applied externally

Compatibility

Designed as a standard replacement spiral point tap for 8-32 through-hole tapping applications in manual tap handles, tapping heads, and CNC rigid tapping setups that accept straight-shank taps with a 0.168-inch shank diameter.

Installation Notes

Installation and use should be performed by a qualified machinist or maintenance technician familiar with tapping operations. Secure the workpiece fully before tapping and ensure the tap is aligned perpendicular to the hole to prevent tap breakage. Apply appropriate cutting fluid or tapping oil to the tap and workpiece before and during use. When tapping manually, use a tap wrench sized for the shank diameter and apply steady, consistent torque without forcing the tool.