Kennametal 1542112 Spiral Point Tap 10-32 Unf Hss

Product Description

The KENNAMETAL 1542112 is a spiral point tap designed for cutting internal threads in through-hole applications. Built from high speed steel (HSS) with a bright, uncoated finish, this tap features a plug chamfer and two flutes that push chips forward ahead of the tap during cutting. It carries a Class 2B thread tolerance with an H3 thread limit, making it suitable for standard-fit threaded assemblies. The 10-32 UNF thread form and right-hand cutting direction are conventional for general fastener threads found in light mechanical, electrical, and instrumentation work.

This tap is suited for through-hole tapping in cast iron, ductile iron, and non-ferrous metals. The spiral point geometry is most effective in production and repair environments where chips can be expelled cleanly through the exit side of the hole. Typical applications include threading blind-adjacent through holes in brackets, housings, enclosures, and panel assemblies. It is used by machinists, maintenance technicians, and electricians working with fine-thread fasteners in metalwork and equipment repair.

Key Features

• 10-32 UNF thread form with right-hand cutting direction
• Spiral point geometry pushes chips forward in through-hole applications
• High speed steel construction for general-purpose metal cutting
• Plug chamfer provides gradual thread engagement at hole entry
• Class 2B fit with H3 thread limit for standard-tolerance threads
• Bright, uncoated finish — no coating to chip or delaminate during use

Compatibility

Designed as an OEM-style replacement or stock tap for through-hole tapping operations requiring a 10-32 UNF thread form in cast iron, ductile iron, or non-ferrous metal workpieces.

Installation Notes

This tap is installed and operated by machinists or qualified technicians using a tap wrench, tapping head, or CNC rigid tapping setup. Ensure the workpiece is securely fixtured and the pilot hole is drilled to the correct tap drill diameter for a 10-32 thread before starting. Apply appropriate cutting fluid for the workpiece material to extend tap life and reduce the risk of tap breakage. Inspect the tap for wear or chipping before each use, as a damaged tap can seize in the workpiece.