Jet 650211 Tin Coated End Mill Set 20 Piece 3/16-3/4 in

Product Description

The JET 650211 is a 20-piece titanium nitride (TiN) coated single end mill set covering the most common fractional sizes from 3/16 inch through 3/4 inch in 1/16-inch increments. The set includes both 2-flute and 4-flute end mills, making it suitable for slotting, profiling, and general-purpose milling operations on a wide range of materials. The TiN coating increases surface hardness and reduces friction at the cutting edge, extending tool life compared to uncoated high-speed steel. Machinists and toolroom technicians working on manual mills or CNC knee mills rely on this type of set for day-to-day cutting work across steel, aluminum, and similar materials.

This end mill set is suited for job shops, maintenance machining, and light production environments where a range of common fractional diameters is needed on hand. The inclusion of both 2-flute and 4-flute geometry in a single set allows the user to select the correct tool for the material and operation without maintaining two separate inventories. Two-flute end mills are preferred for softer materials and slotting, while the 4-flute versions are better suited for finishing cuts in ferrous metals.

Key Features

• 20-piece set covering 3/16 inch through 3/4 inch in 1/16-inch increments
• TiN coating for improved wear resistance and extended tool life
• Includes both 2-flute and 4-flute single end mills in each size
• Single end configuration for standard milling and profiling applications
• Fractional sizing covers the most commonly specified diameters in general machining

Compatibility

Designed for use in standard vertical milling machines and CNC knee mills accepting straight-shank end mills with collet or end mill holders sized to match each included diameter.

Installation Notes

End mills should be installed by a qualified machinist using the appropriate collet or end mill holder sized to the shank diameter. Ensure the spindle is fully stopped and the machine is powered down before changing tooling. Secure the end mill to the recommended engagement depth in the holder to prevent pullout under cutting loads. Inspect the TiN coating and cutting edges for chipping or wear before each use and replace any damaged tools.