Accupro 39545 Square End Mill 9/32 Inch 2 Flute Tialn

Product Description

The ACCUPRO 39545 is a two-flute, square-end, single-end mill designed for general-purpose milling operations on a wide range of materials. It is manufactured from powdered metal and finished with a TiAlN coating, which improves heat resistance and extends tool life in higher-speed applications. The cutting diameter measures 0.2813 inches (9/32 inches), with a 0.5625-inch (9/16-inch) length of cut and a 3/8-inch shank diameter. The 30-degree spiral helix and right-hand cut with right-hand flute geometry promote efficient chip evacuation and clean, accurate cuts. Licensed machinists and tool-and-die professionals are the typical installers.

This end mill suits CNC machining centers and manual mills in job shop, production, and maintenance environments. Its centercutting capability allows it to plunge directly into workpiece material, making it useful for pocketing and slotting operations. The 2-5/16-inch overall length keeps the tool rigid while providing adequate reach for most standard milling tasks. Typical workpiece materials include steel, stainless, cast iron, and similar ferrous alloys where TiAlN coatings perform well under elevated cutting temperatures.

Key Features

• Powdered metal construction provides consistent grain structure and improved wear resistance compared to standard HSS
• TiAlN finish resists heat buildup at the cutting edge, extending tool life in ferrous machining
• Centercutting design allows direct plunge entry for pocketing and slotting operations
• 30-degree helix angle on spiral flutes promotes smooth chip flow and reduces cutting force
• Right-hand cut and right-hand flute configuration compatible with standard spindle rotation
• Two-flute geometry provides adequate chip clearance in tighter pocketing applications

Compatibility

Designed as a standard-shank replacement or service end mill for CNC machining centers and manual knee mills accepting a 3/8-inch shank via collet, end mill holder, or milling chuck.

Installation Notes

Installation should be performed by a qualified machinist following shop safety procedures. Ensure the spindle is fully stopped and locked out before mounting or removing the tool. Seat the shank fully into the holder to the recommended engagement depth and torque the set screw or collet nut per the toolholder manufacturer specifications. Confirm runout with a dial indicator before beginning a cut to protect both the tool and the workpiece.