Helical Solutions 48260 Square End Mill 3 Flute 0.375 in

Product Description

The HELICAL SOLUTIONS 48260 is a 3-flute solid carbide square end mill designed for high-performance milling in aluminum and non-ferrous materials. It features a 40-degree helix angle and variable index flute spacing, which helps reduce chatter and improve surface finish at elevated feed rates. The 0.375-inch cutting diameter and 1-inch length of cut make it well suited for slotting, profiling, and pocket milling operations. Single-end geometry and a straight shank keep the tool simple to load and qualify in standard collet or end mill holders. The bright, uncoated finish is appropriate for aluminum, where coatings can cause material adhesion.

This end mill is intended for use in CNC machining centers and manual mills where aluminum, brass, copper, and other non-ferrous alloys are the primary workpiece materials. It fits production shops, job shops, and maintenance machining environments. The 0.375-inch shank diameter is a standard size compatible with ER collets, end mill holders, and Weldon-style toolholders commonly found in vertical and horizontal machining centers.

Key Features

• 3-flute variable index geometry reduces harmonic vibration during aluminum milling
• 40-degree helix angle promotes efficient chip evacuation in gummy non-ferrous materials
• Solid carbide construction provides rigidity and wear resistance at high surface footage
• Center-cutting design allows plunge entry as well as ramp and helical interpolation
• Right-hand cut, right-hand helix — standard orientation for conventional CNC setups
• Bright/uncoated finish minimizes built-up edge when machining aluminum alloys

Compatibility

Designed for use in aluminum and non-ferrous machining applications (Primary Workpiece Material Code: N). The 0.375-inch straight shank fits standard ER-16, ER-20, and larger collet systems as well as 3/8-inch end mill holders.

Installation Notes

Installation and tool changes must be performed with the machine in a locked-out, de-energized state per applicable machine-tool safety procedures. Seat the straight shank fully into the holder and torque the collet nut or set screw to the toolholder manufacturer's specification. Verify runout at the cutting edge before beginning a production cut; excessive runout will accelerate wear on a variable-index geometry tool. Always confirm spindle speed and feed rate are appropriate for the workpiece material and tool diameter before engaging the cut.