Hertel G837620 Extension Tap 6-32 Unc Spiral Point Hss

Product Description

The HERTEL G837620 is a spiral point plug extension tap designed for cutting 6-32 UNC threads in through-hole applications. Built from high speed steel with a bright, uncoated finish, this tap measures 4 inches in overall length and is suited for jobs requiring extended reach beyond a standard tap. The H3 thread limit and 2B class of fit make it appropriate for general-purpose fastener threads where standard tolerance fits are required. With 2 flutes and a plug chamfer, it pushes chips forward ahead of the cut, making it effective in through-hole setups on production and maintenance work.

This extension tap is used by machinists, tool and die technicians, and maintenance mechanics in metalworking, fabrication, and industrial repair environments. The extended overall length allows the tool to reach threads in recessed or deep-access locations where a standard-length tap cannot engage properly. It is appropriate for use in manual tapping handles or low-speed machine tapping setups on ferrous and non-ferrous metals where 6-32 UNC threading is required.

Key Features

• Spiral point geometry pushes chips forward, ideal for through-hole tapping
• H3 thread limit provides consistent tolerance control for 2B class fits
• 4 inch overall length extends reach into recessed or deep-clearance work areas
• High speed steel construction handles a broad range of metalworking materials
• Bright, uncoated finish suitable for use with standard cutting fluids
• Plug chamfer provides a gradual lead-in for controlled thread engagement

Compatibility

Designed as an OEM-style replacement or direct-use extension tap for 6-32 UNC through-hole threading applications in standard metalworking and maintenance operations.

Installation Notes

This tap should be installed by a qualified machinist or maintenance technician familiar with threading operations and toolholder standards. Always secure the workpiece and use an appropriate cutting fluid before tapping to reduce heat and extend tool life. Power down and lock out any machine before changing or setting taps in a machine spindle. Do not apply excessive torque or force if the tap binds, as high speed steel taps are susceptible to breakage under torsional overload.