Accupro T2680244 Spiral Point Tap M4 X 0.7 Plug 6H

Product Description

The ACCUPRO T2680244 is a spiral point tap designed for threading M4 x 0.7 metric holes in production and maintenance machining environments. It features a plug chamfer style with 3 flutes and is manufactured from 3% vanadium high speed steel, which provides improved wear resistance and edge retention compared to standard M2 HSS. The 6H thread class and D4 thread limit deliver consistent tolerance control for standard metric fastener fitment. With a bright finish and right-hand thread direction, this tap is well suited for through-hole threading applications where chip pushing ahead of the cut is acceptable. Machinists and tool and die professionals are the primary users.

This tap is rated for aluminum machining applications and is a practical choice for CNC machining centers, drill presses, and manual tapping operations where M4 x 0.7 threads are required. The 13 mm thread length accommodates standard through-hole depths at this diameter, while the 54 mm overall length allows use in standard tap holders and quick-change tooling systems. Coolant-through capability is not available on this tap, so flood or mist coolant delivery at the spindle is the appropriate method when cutting fluid is required.

Key Features

• M4 x 0.7 thread size with 6H class of fit and D4 thread limit for standard metric tolerance
• 3% vanadium high speed steel construction for improved wear resistance over standard M2 HSS
• Plug chamfer style for through-hole threading with forward chip ejection
• 3 flutes with right-hand thread direction
• Bright finish with no oversize — suitable for standard tolerance applications
• Rated for aluminum material application

Compatibility

Designed as an OEM-style threading tool for use in standard tap holders, quick-change tapping chucks, and manual tap wrenches that accept a 4.27 mm shank diameter. Suitable for M4 x 0.7 through-hole threading operations in aluminum workpieces.

Installation Notes

This tap should be installed in a properly sized tap holder or chuck that matches the 4.27 mm shank diameter. Always secure the workpiece before beginning the tapping cycle and ensure the spindle is aligned perpendicular to the hole to prevent tap breakage. Apply appropriate cutting fluid for aluminum when not using flood coolant. Do not reverse the tap under load without a reversible tapping attachment, as this is a spiral point design intended for through-hole use.