Hertel R837686 Spiral Point Extension Tap M14 X 2 Hss

Product Description

The HERTEL R837686 is a spiral point extension tap designed for cutting metric coarse internal threads in through-hole applications. It produces an M14 x 2.00 thread profile with a 6H class of fit, making it suitable for precision threading work that requires controlled tolerance. Built from high speed steel, this tap handles moderate production runs across a range of ferrous and non-ferrous materials. The plug chamfer eases entry and reduces the torque required to start the cut. With a 6-inch overall length and a reduced shank, it reaches into deeper cavities where standard-length taps cannot. Machinists and toolroom technicians are the primary users.

This tap is used in machine shops, maintenance facilities, and production environments where metric coarse threads are required. Its spiral point geometry pushes chips forward ahead of the cutting flutes, making it effective in through-hole applications on CNC machining centers, drill presses, and tapping machines. The 6-inch extension length suits fixtures, deep-bored housings, and components where clearance is limited by the workpiece geometry or fixturing setup.

Key Features

• M14 x 2.00 metric coarse thread profile with 6H class of fit for controlled tolerance
• Spiral point geometry pushes chips forward, optimized for through-hole tapping
• High speed steel construction for durability across a range of workpiece materials
• Plug chamfer for easier thread entry and reduced starting torque
• Reduced shank design allows use in standard tap holders and chucks
• 6-inch overall length provides reach into deep or obstructed bores

Compatibility

Designed as a direct-fit extension tap for through-hole applications requiring M14 x 2.00 metric coarse threads at a 6H class of fit. Compatible with standard tap holders, quick-change tapping heads, and chucks sized for the reduced shank diameter.

Installation Notes

This tap is installed and operated by machinists and toolroom technicians on machine tools or tapping equipment. Secure the tap in a properly sized holder and ensure alignment between the tap axis and hole axis before starting the cut to prevent breakage. Use appropriate cutting fluid for the workpiece material to extend tap life and improve thread finish. Never reverse a spiral point tap under load without confirming the machine is set for proper reverse-feed retraction.