Guhring 9041280063500 Thread Mill 1/4-20 Internal Carbide

Product Description

The GUHRING 9041280063500 is a helical flute thread mill designed for cutting internal UNC threads in demanding machining applications. Built from solid carbide and coated with titanium carbonitride (TiCN), this tool delivers wear resistance and thermal stability in ferrous and non-ferrous materials. It produces 1/4-20 threads with a 0.1850 inch cutting diameter, a 0.5750 inch length of cut, and a 2.5000 inch overall length. The 1/4 inch shank fits standard collet and tool holder systems. Machinists and CNC operators working in production shops, tool rooms, and precision manufacturing environments rely on this style of thread mill for accurate, single-pass or helical-interpolated thread generation.

This thread mill is suited for internal thread milling on CNC machining centers using helical interpolation. It is appropriate for threading operations in materials where tap breakage is a concern or where thread tolerance control is critical. The right-hand flute direction and 3-flute geometry support chip evacuation in through and blind-hole applications. Note that this tool does not have coolant-through capability, so external coolant delivery or air blast is the standard approach during cutting. It falls under GUHRING Series 4128 and is classified under UNSPSC code 23242117.

Key Features

• Solid carbide construction for rigidity and long tool life in precision threading
• TiCN coating improves surface hardness and reduces built-up edge in ferrous materials
• 1/4-20 UNC internal thread profile at 20 teeth per inch
• 3-flute, right-hand helical geometry for efficient chip removal
• 0.1850 inch cutting diameter with 0.5750 inch length of cut
• No coolant-through design — compatible with external coolant or air blast setups

Compatibility

Designed as an OEM-style thread mill for CNC machining centers capable of helical interpolation, accepting a 1/4 inch straight shank in standard collet chucks or end mill holders.

Installation Notes

Installation and operation of this thread mill should be performed by qualified machinists or CNC programmers familiar with helical interpolation cycles. Ensure the spindle and tool holder are properly cleaned and torqued before use, and verify runout with a dial indicator before cutting. Power down and lock out the machine before changing or inspecting the tool. Do not attempt to use this tool in a manual drill press or hand-held application.