Kennametal 5416938 Spiral Point Tap 9/16-12 Unc Hss-e Ticn

Product Description

The KENNAMETAL 5416938 is a spiral point tap designed for through-hole threading in a range of metalworking applications. Built from High-Speed Steel-E (HSS-E) with a dual TiCN and TiN coating, this tap delivers improved wear resistance and lubricity compared to uncoated tooling. It cuts a 9/16-12 UNC right-hand thread with a plug chamfer and 3 flutes, producing a thread length of 1 inch over an overall length of 3.59 inches. The H3 thread limit provides consistent sizing for standard tolerance fits. It is intended for use in machine tapping operations by machinists and tool-and-die professionals working in production or job-shop environments.

This tap is suited for through-hole threading in steel, stainless steel, cast iron, and non-ferrous metals. The spiral point geometry pushes chips forward through the hole, making it particularly effective in machine tapping setups where continuous chip evacuation is needed. It performs well in CNC machining centers, drill presses, and tapping machines. The plug chamfer style, with its moderate lead-in, is the standard choice for threading through holes where the tap can advance freely past the workpiece.

Key Features

• HSS-E base material provides added toughness and heat resistance over standard HSS
• Dual TiCN and TiN coating reduces friction and extends tool life in ferrous and non-ferrous materials
• Spiral point geometry pushes chips forward, keeping the flutes clear during through-hole threading
• Plug chamfer (3-5 thread lead) suits general-purpose through-hole machine tapping
• H3 thread limit ensures consistent fit for standard UNC tolerance requirements
• Series T820 designation; material grade KSP32 for reference in procurement and tool management

Compatibility

Designed for through-hole threading operations in steel, stainless steel, cast iron, and non-ferrous metals. Compatible with standard 9/16-12 UNC toolholders and tapping attachments that accept a 0.429-inch shank diameter.

Installation Notes

This tap is installed and used by machinists and tooling professionals in machine tapping applications. Before mounting, confirm the tapping machine or CNC spindle is powered down and the workpiece is securely fixtured. Use an appropriate cutting fluid or tapping compound suited to the workpiece material to maximize coating life and thread quality. Do not use this tap for blind-hole applications without verifying chip clearance, as the spiral point style is optimized for through-hole work.