Cleveland C59109 Extension Tap 10-24 Unc Hss Spiral Point

Product Description

The CLEVELAND C59109 is a spiral point plug extension tap designed for threading operations that require extended reach beyond standard tap lengths. Built from high-speed steel, this tap cuts right-hand 10-24 UNC threads with a 2-flute spiral point configuration that pushes chips forward through the hole, making it well suited for through-hole tapping applications. The H3 thread limit provides a tighter tolerance for consistent thread fit. At 6 inches overall length, it gives machinists and maintenance technicians the reach needed in confined or deep-access work areas without requiring a tap extension adapter.

This extension tap is used in production machining, general metalworking, and maintenance and repair operations where standard-length taps cannot reach the workpiece. The spiral point plug chamfer makes it appropriate for through-hole applications across a range of materials including steel, cast iron, stainless steel, and non-ferrous aluminum. It is suited for use in CNC machining centers, drill presses, and tapping machines, as well as hand-tapping operations where access depth is the limiting factor.

Key Features

• Spiral point geometry pushes chips forward, reducing chip packing in through-hole applications
• High-speed steel construction provides wear resistance across ferrous and non-ferrous materials
• H3 thread limit delivers consistent 2B class of fit on 10-24 UNC threads
• 6-inch overall length provides extended reach for deep or obstructed workpiece locations
• Bright/uncoated finish allows easy visual inspection of cutting edge condition
• Right-hand flute direction and right-hand thread compatible with standard tapping setups

Compatibility

Designed for threading 10-24 UNC right-hand threads to a 2B class of fit in materials including steel, cast iron, stainless steel, and non-ferrous aluminum. Part of the Cleveland Series 1011EXT extension tap line.

Installation Notes

This tap should be installed and operated by machinists or maintenance technicians familiar with tapping procedures and cutting tool handling. Secure the workpiece fully before beginning the tapping operation, and ensure the tap is properly aligned with the pilot hole to prevent tap breakage. Apply appropriate cutting fluid for the workpiece material to extend tool life and improve thread quality. Follow shop safety procedures and relevant OSHA machine guarding requirements when operating tapping equipment.