Value Collection 320-3785 Ball End Mill 1-1/4 in 4 Flute Hss

Product Description

The VALUE COLLECTION 320-3785 is a single-end ball end mill designed for contour milling, profiling, and 3D surface machining in ferrous and non-ferrous materials. It features a 1.25-inch cutting diameter and a 4-flute, right-hand spiral configuration ground from high speed steel. The bright, uncoated finish makes it a straightforward workhorse for general-purpose milling where specialized coatings are not required. With a 2-inch length of cut and 4.5-inch overall length, this tool fits standard vertical and horizontal milling setups. Machinists and tooling professionals install this type of end mill in manual mills and CNC machining centers alike.

This ball end mill is suited for producing radii, slots, and contoured features in shop environments handling medium-duty material removal. Its 1.25-inch shank diameter matches standard R8, CAT, or BT toolholders sized for that bore. The right-hand cutting direction is standard for conventional and climb milling operations on knee mills and machining centers. It is appropriate for job shops, tool rooms, and production environments working in steel, aluminum, and similar materials at moderate cutting speeds typical for high speed steel tooling.

Key Features

• 1.25-inch ball nose cutting diameter for radius and contour profiling
• 4-flute right-hand spiral geometry for balanced chip evacuation and surface finish
• 2-inch length of cut accommodates moderate-depth profiling passes
• High speed steel construction provides toughness in interrupted or manual-feed applications
• Bright, uncoated finish suitable for general-purpose milling without coating-specific speed requirements
• Single-end design with 1.25-inch straight shank for direct collet or end mill holder mounting

Compatibility

Designed as a standard single-end ball end mill replacement for general milling applications requiring a 1.25-inch diameter, 4-flute, high speed steel tool with a 1.25-inch shank diameter.

Installation Notes

Installation is performed by qualified machinists using an appropriate end mill holder or collet sized to the 1.25-inch shank. Ensure the spindle is fully stopped and locked before changing tooling. Torque the retention mechanism per the toolholder manufacturer specifications and verify runout with a dial indicator before commencing a cut. High speed steel tooling requires conservative speeds and feeds relative to carbide; consult published HSS cutting data for the workpiece material.