Cleveland C59110 Extension Tap 10-32 Unf 2 Flute Hss

Product Description

The CLEVELAND C59110 is a spiral point extension tap designed for threading 10-32 UNF holes in extended-reach applications where a standard-length tap cannot access the work area. Built from high speed steel with a bright uncoated finish, this plug-chamfer tap cuts right-hand threads to a 2B class of fit with an H3 thread limit. At 6 inches overall length and a 7/8-inch thread length, it gives machinists and maintenance techs the reach needed for deep-hole or obstructed threading jobs. The two-flute spiral point design pushes chips forward ahead of the tap, keeping the flutes clear and reducing the chance of chip packing in through-hole applications.

This tap is suited for production and maintenance threading in cast iron, non-ferrous aluminum, stainless steel, and steel. It performs in both manual and machine tapping setups where reach beyond a standard tap shank is required. The plug chamfer provides a gradual thread entry, making it appropriate for through-holes. Shops running 10-32 UNF fastener assemblies in tight or recessed bores will find this tool fits the workflow without requiring a custom extension setup.

Key Features

• Spiral point flute design pushes chips forward for clean through-hole threading
• H3 thread limit provides consistent fit for 2B class of fit applications
• 6-inch overall length delivers extended reach into deep or obstructed bores
• High speed steel construction handles cast iron, aluminum, stainless steel, and steel
• Plug chamfer allows gradual thread engagement suitable for through-holes
• Bright uncoated finish — no coating variables to account for during setup

Compatibility

Designed for threading 10-32 UNF right-hand threads in through-hole applications across cast iron, non-ferrous aluminum, stainless steel, and steel workpieces. Part of the CLEVELAND Series 1011EXT extension tap line.

Installation Notes

Use in a tapping machine, drill press, or CNC machining center with appropriate tap chuck and cutting fluid for the material being threaded. Ensure the workpiece is securely fixtured and the tap is aligned axially with the pilot hole before engaging. Power down and de-energize any machine before changing tooling. Do not use this tap on blind holes where chip evacuation is not possible, as the spiral point geometry is designed for through-hole chip forwarding.