Kennametal 1541629 Spiral Point Tap 10-24 Unc Hss

Product Description

The KENNAMETAL 1541629 is a spiral point plug tap designed for cutting internal threads in through-hole applications. Manufactured from high speed steel (HSS) with a bright uncoated finish, it cuts 10-24 UNC right-hand threads and is sized for use in production and maintenance threading operations. The plug chamfer on the leading end allows the tap to start easily and advance smoothly into the workpiece. With an overall length of 2.375 inches and a thread length of 0.875 inches, this tap is a standard fractional-inch tool suited for hand tapping, drill press work, and CNC tapping cycles. Licensed machinists, tool and die makers, and maintenance technicians are the typical users.

This tap is designed for threading through-holes in cast iron, ductile iron, and non-ferrous metals. The spiral point geometry pushes chips forward ahead of the tap rather than packing them in the flute, making it well suited for production environments where chip clearance in through-hole work is a priority. It belongs to the Kennametal Series 5301 and is a fractional-inch standard tool appropriate for both manual and machine tapping setups at the 10-24 UNC thread specification.

Key Features

• 10-24 UNC right-hand thread form with H2 thread limit for consistent tolerance control
• Spiral point geometry pushes chips forward, ideal for through-hole tapping
• High speed steel construction provides durability across ferrous and non-ferrous materials
• Bright uncoated finish suitable for use with standard cutting fluids
• Plug chamfer (3-5 thread lead) for easy starting and smooth thread engagement
• 2-flute design with 0.194-inch shank diameter for compatibility with standard tap holders

Compatibility

Designed for threading 10-24 UNC through-holes in cast iron, ductile iron, and non-ferrous metal workpieces. Compatible with standard tap holders and chucks accepting a 0.194-inch shank diameter. Part of the Kennametal Series 5301 spiral point tap line.

Installation Notes

Power down or disengage the spindle before loading or removing the tap from any holder. Use an appropriate cutting fluid or tapping oil matched to the workpiece material to extend tool life and improve thread finish. Ensure the tap is held perpendicular to the workpiece surface before starting the thread to avoid tap breakage or cross-threading. Follow applicable shop safety practices and machine manufacturer guidelines when performing tapping operations.