Harvey Tool 937020 Square End Mill 0.5mm 3 Flute Carbide

Product Description

The HARVEY TOOL 937020 is a solid carbide square end mill designed for high-precision milling of small-diameter features in metalworking and machining applications. With a 0.5 mm (0.0200 inch) cutting diameter and a 1/32 inch (0.03 inch) length of cut, this tool is built for micro-milling work where tight tolerances and fine detail are required. The three-flute geometry provides a balance between chip evacuation and cutting edge strength at this scale. A 30-degree helix angle supports smooth cutting action and helps reduce lateral forces during the cut. The bright, uncoated finish suits a wide range of workpiece materials without adding coating thickness that could affect dimensional accuracy at this diameter.

This end mill is suited for CNC machining centers and precision milling machines used in tool and die, mold making, medical device manufacturing, and aerospace component work. Its extended reach design, with a reach length of 0.12 inch and a 2.5-inch overall length on a 1/8 inch shank, allows access to recessed features while maintaining rigidity. It is intended for right-hand cutting and right-hand flute direction, consistent with standard CNC spindle configurations. Single-end configuration means the tool is replaced rather than reversed when the cutting end is worn.

Key Features

• 0.5 mm (0.0200 inch) cutting diameter for micro-milling applications
• Solid carbide construction for rigidity and wear resistance at small diameters
• 3-flute design balances chip clearance and cutting edge support
• 30-degree helix angle promotes smooth cutting and reduced lateral load
• Extended reach geometry with 0.12 inch reach length for access to recessed features
• Bright/uncoated finish maintains dimensional accuracy where coating thickness matters
• Right-hand cut, right-hand flute, centercutting — compatible with standard CNC setups

Compatibility

Designed as an OEM-style replacement or direct-use solid carbide square end mill for CNC machining centers and precision milling machines accepting a 1/8 inch shank diameter.

Installation Notes

Installation should be performed by a qualified machinist or CNC operator. Secure the 1/8 inch shank in a collet or end mill holder rated for the shank diameter, ensuring full and proper engagement depth before tightening. At 0.5 mm diameter, tool runout is critical — use a high-precision collet chuck and verify runout before cutting. Do not exceed the tool manufacturer's recommended speeds and feeds for this diameter and material combination, as micro-diameter carbide tools are sensitive to deflection and breakage under excessive load.