Accupro 12178741 Square End Mill 1 in 2 Flute Solid Carbide

Product Description

The ACCUPRO 12178741 is a solid carbide square end mill designed for precision milling operations in metal, composites, and engineered materials. It features a 1 inch cutting diameter, a 1-3/4 inch length of cut, and a 4 inch overall length with a 1 inch shank diameter. The 2-flute geometry and 40-degree helix angle promote efficient chip evacuation and smooth cutting action. The nACRo finish enhances heat and wear resistance, extending tool life in demanding applications. The centercutting design allows both plunge and peripheral milling. This tool is installed and operated by machinists and CNC tooling professionals in shop and production environments.

This end mill is suited for slotting, profiling, and peripheral milling in ferrous and non-ferrous materials where a sharp, aggressive cut is needed. The spiral flute and right-hand cut with right-hand flute configuration is standard for conventional CNC milling setups. The regular length classification and 1.5 to 2.0 inch length-of-cut range make it appropriate for general-purpose machining applications where moderate reach and rigidity are both priorities. The micrograin carbide substrate provides consistent edge integrity across extended run times.

Key Features

• 1 inch cutting diameter with a tight mill diameter tolerance of +0.000 / -0.002 inches
• Solid carbide micrograin substrate for edge retention and rigidity
• nACRo coating for improved heat and wear resistance
• 40-degree helix angle with spiral flute geometry for efficient chip flow
• Centercutting design supports both plunge cutting and side milling
• Right-hand cut, right-hand flute — compatible with standard CNC spindle direction

Compatibility

Designed as a standard 1 inch shank square end mill for use in CNC machining centers and manual mills equipped with appropriate ER, CAT, BT, or HSK toolholders sized for a 1 inch shank diameter.

Installation Notes

Installation should be performed by a qualified machinist or CNC setup technician. Ensure the machine spindle is fully powered down and locked out before inserting or removing tooling. Seat the shank to the full recommended insertion depth in the toolholder and torque the collet or set screw to the toolholder manufacturer's specification. Verify runout with a dial indicator after installation before beginning a cut.