Hertel K020105AS M3.5x0.60 Metric Coarse Straight Flute Tap

Product Description

The HERTEL K020105AS is a straight flute plug tap designed for cutting M3.5x0.60 metric coarse internal threads in a wide range of materials. Built from high-speed steel with a bright, uncoated finish, this tap delivers consistent thread form in production and maintenance environments. The plug chamfer style eases entry into through-holes and blind holes with adequate clearance. With an overall length of 2 inches and a thread length of 0.6875 inches (11/16 inches), the K020105AS suits both hand tapping and machine tapping applications. A licensed machinist, toolroom tech, or industrial maintenance professional is the typical end user.

This tap is suited for threading M3.5x0.60 metric coarse holes in ferrous and non-ferrous metals, plastics, and similar workpiece materials encountered in general industrial, maintenance, repair, and manufacturing settings. The straight flute geometry makes it effective in materials that produce short, breakable chips. It is a common choice for benchtop drill presses, CNC tapping heads, and hand tap wrenches where a plug-style lead is appropriate for the application. The right-hand thread direction is standard for the vast majority of fastener applications.

Key Features

• M3.5x0.60 metric coarse thread form for compatibility with standard metric fasteners
• Plug chamfer provides gradual thread engagement, suitable for through-holes and open blind holes
• 3 straight flutes promote chip clearance in short-chipping materials
• High-speed steel construction offers good toughness and wear resistance at moderate cutting speeds
• Bright, uncoated finish is suitable for use with standard cutting fluids and oils
• D1 thread limit provides close tolerance control for precision threaded connections

Compatibility

Designed as an OEM-style straight flute tap for use in standard M3.5x0.60 metric coarse tapping applications across general industrial and maintenance tooling setups.

Installation Notes

Installation is performed by machinists or maintenance technicians using a tap wrench, tapping head, or CNC machine with appropriate spindle speed for the workpiece material. Always use a cutting fluid or tapping oil suited to the workpiece material to extend tap life and improve thread finish. Ensure the tap is aligned perpendicular to the workpiece surface before beginning the cut to avoid tap breakage. For blind holes, confirm adequate chip clearance depth before tapping to prevent bottoming the tap under load.