Helical Solutions 88247 Square End Mill 1 in 5 Flute Carbide

Product Description

The HELICAL SOLUTIONS 88247 is a 5-flute solid carbide square end mill engineered for steel machining applications. It features a 1 inch cutting diameter, a 5.25 inch length of cut, and a 9 inch overall length, making it well suited for deep-cavity and extended-reach steel cutting operations. The 40-degree helix angle promotes aggressive chip evacuation and smooth cutting action. An APLUS coating provides thermal resistance and surface hardness to extend tool life in demanding ferrous materials. The variable pitch flute spacing reduces harmonic vibration, improving surface finish and stability at higher feed rates. This tool is installed and operated by machinists and CNC programmers in job shops, production facilities, and toolrooms.

This end mill is designed for use in steel and ferrous alloy machining operations on vertical machining centers, horizontal mills, and CNC milling equipment. It fits the Helical Solutions Steels - 5 Flute - Square - Variable Pitch series, targeting applications where chatter suppression, deep slotting, and high-material-removal rates in steel are required. The 1 inch straight cylindrical shank provides secure clamping in standard end mill holders, collet chucks, and hydraulic toolholders. It is a single-end, right-hand cutting, right-hand flute tool with center-cutting capability, allowing plunge entry when required by the operation.

Key Features

• 1 inch cutting diameter with 5.25 inch length of cut for deep-reach steel milling
• 5-flute variable-index design reduces harmonic vibration and chatter during heavy cuts
• 40-degree helix angle promotes efficient chip flow and reduces cutting forces in ferrous materials
• APLUS coating enhances wear resistance and thermal stability for extended tool life in steel
• Center-cutting geometry allows direct plunge entry without pre-drilling
• Solid carbide construction delivers rigidity and dimensional stability compared to HSS tooling

Compatibility

Designed for steel and ferrous alloy milling operations as part of the Helical Solutions Steels - 5 Flute - Square - Variable Pitch series. Compatible with standard 1 inch end mill holders, collet chucks, and hydraulic toolholders on CNC vertical and horizontal machining centers.

Installation Notes

Installation should be performed by a qualified machinist or CNC operator. Ensure the machine spindle is fully stopped and the tool changer or spindle is locked out before mounting or removing the tool. Seat the shank to the full recommended insertion depth in the toolholder and torque the retention screw to the toolholder manufacturer's specification. Verify runout with a dial indicator before beginning a production cut, as excessive runout accelerates wear and reduces surface finish quality on carbide end mills.