Harvey Tool 957308 Ball End Mill 1/8 in 3 Flute Solid Carbide

Product Description

The HARVEY TOOL 957308 is a solid carbide ball end mill designed for high-precision milling in hard materials and challenging alloys. With a 0.125 inch mill diameter and a 1.25 inch length of cut, this tool delivers extra-long flute reach in a miniature form factor. The variable helix geometry reduces chatter and improves surface finish during finishing passes. Three right-hand spiral flutes evacuate chips efficiently while maintaining rigidity in the cut. This tool is intended for use by machinists and tooling specialists working on CNC machining centers and manual mills requiring tight-tolerance profiling and contouring.

The 957308 is suited for finishing operations in hard materials, including steel, stainless steel, and cast iron. Its extra-long flute length makes it appropriate for deep-cavity milling, rib profiling, and contoured surface work where standard-length tooling cannot reach. The straight cylindrical shank with h6 tolerance ensures secure collet clamping in precision toolholders. The bright uncoated finish makes this tool a reliable choice when coating interactions with the workpiece material are a concern or when regrinding is anticipated.

Key Features

• Variable helix design reduces harmonic vibration and chatter during finishing cuts
• Extra-long flute series provides 1.25 inch length of cut for deep-reach applications
• Solid carbide construction delivers rigidity and wear resistance in hard material grades
• 0.0625 inch nose radius for accurate ball-end profiling and 3D contouring
• Right-hand cutting and right-hand flute direction compatible with standard CNC spindle rotation
• Bright uncoated finish suitable for operations where coated tooling is not required

Compatibility

Designed for use in CNC machining centers and manual mills with precision collet or toolholder systems accepting a 0.125 inch straight cylindrical shank. Rated for primary use in hard materials and secondary use in steel, stainless steel, and cast iron per manufacturer workpiece material classifications.

Installation Notes

Install in a precision collet or shrink-fit toolholder rated for the 0.125 inch shank diameter and confirm runout before beginning a cut. Ensure the machine spindle is fully stopped and the controller is in an e-stop or safe state before inserting or removing the tool. Because of the miniature diameter and extra-long flute length, use conservative feed and speed parameters and take light radial engagement passes to avoid tool deflection or breakage. Consult the manufacturer cutting data recommendations for the specific workpiece material grade before programming the operation.