Hertel GG99914214 Ball End Mill 0.9375 in 2 Flute Hss

Product Description

The HERTEL GG99914214 is a single-end ball end mill designed for milling operations that require a full-radius cutting profile at the tip. Manufactured from M7 high speed steel in an uncoated finish, it features a 0.9375-inch (15/16 inch) cutting diameter and a 2-flute spiral flute configuration with a 30-degree helix angle. The right-hand cutting and flute direction suit standard CNC and manual milling setups. With a 2.25-inch length of cut and 4.5-inch overall length, this tool handles moderate-depth contouring, profiling, and 3D surfacing passes. Machinists and tool-and-die professionals working in job shops or maintenance environments are the primary users.

This ball end mill is well suited for general-purpose milling in steel, cast iron, aluminum, and similar materials where a high speed steel tool is appropriate. The 0.75-inch shank diameter fits standard R8, CAT, BT, and similar toolholders that accept a 3/4-inch straight shank. Typical applications include contouring, slot milling, and profile work on vertical mills and machining centers operating at speeds appropriate for uncoated HSS tooling. The 2-flute design provides good chip clearance in softer materials and slotting operations.

Key Features

• 0.9375-inch (15/16 inch) ball-nose cutting diameter for full-radius profiling
• M7 high speed steel construction for toughness in general-purpose milling
• 2-flute spiral design with 30-degree helix angle promotes efficient chip evacuation
• Uncoated finish suitable for re-sharpening and use with cutting fluids
• Single-end configuration with 0.75-inch straight shank for broad toolholder compatibility
• Right-hand cut and right-hand flute direction for standard spindle rotation

Compatibility

Designed as an OEM-style replacement or standard tooling option for vertical milling machines and machining centers accepting a 0.75-inch straight-shank end mill.

Installation Notes

Installation is performed by a machinist or tooling technician. Power down and lock out the spindle before loading or changing tooling. Seat the shank fully in the collet or end mill holder and torque the retention mechanism to the toolholder manufacturer's specification. Verify runout with a dial indicator before beginning a cut, and select spindle speeds appropriate for uncoated HSS tooling in the workpiece material.