Harvey Tool 992525 Square End Mill 0.025 in 4 Flute Carbide

Product Description

The HARVEY TOOL 992525 is a solid carbide square end mill designed for precision milling in tight tolerances and small-feature applications. With a 0.025-inch cutting diameter and a 1.9 mm (0.075-inch) length of cut, this tool is built for micro-machining work where dimensional accuracy is critical. The four-flute geometry provides a balance of chip evacuation and surface finish quality. A 30-degree helix angle promotes smooth cutting action and reduces deflection on delicate cuts. The bright, uncoated finish makes it well suited for non-ferrous metals, plastics, and other materials where coating adhesion is not required. Machinists and toolroom technicians working on CNC mills and machining centers are the primary users.

This end mill fits micro-scale milling operations in industries such as medical device manufacturing, electronics, aerospace prototyping, and precision moldmaking. The 0.125-inch shank diameter accommodates standard collets and toolholders found on most CNC machining centers and manual mills. The 1.5-inch overall length keeps the tool compact, reducing runout risk during fine-feature work. The extended-reach design, with a 0.312-inch reach length, allows access to recessed features or stepped pockets without requiring a longer, more flexible tool. Right-hand cut and right-hand flute direction are standard configurations compatible with conventional CNC spindle rotation.

Key Features

• 0.025-inch cutting diameter for micro-milling and fine-feature work
• Solid carbide construction for rigidity and wear resistance
• 4-flute design balances chip clearance with surface finish quality
• 30-degree helix angle reduces cutting forces and deflection
• Centercutting capability allows direct plunge entry
• Extended reach of 0.312 inches provides access to recessed features
• Bright uncoated finish suited for non-ferrous metals and plastics

Compatibility

Designed for use in standard CNC machining centers and manual mills accepting a 0.125-inch shank diameter collet or toolholder. Suitable for micro-milling applications requiring a square end profile with right-hand cut geometry.

Installation Notes

Installation should be performed by a qualified machinist or toolroom technician familiar with CNC tooling setup. Ensure the spindle is fully stopped and the machine is powered down or in an E-stop state before changing tooling. Seat the 0.125-inch shank fully into the collet and torque the collet nut per the toolholder manufacturer specifications. Due to the small diameter, minimize stick-out and verify runout with a dial indicator before beginning a cut to reduce the risk of tool breakage.