Accupro 12178703 Square End Mill 1 in 7 Flute Solid Carbide

Product Description

The ACCUPRO 12178703 is a 7-flute solid carbide square end mill designed for high-efficiency milling in demanding metalworking applications. It features a 1 inch cutting diameter, a 2 inch length of cut, and a 4 inch overall length with a 1 inch straight shank. The micrograin carbide substrate paired with an AlTiN finish provides heat resistance and extended tool life at elevated cutting speeds. A 37.5 degree spiral helix and right-hand cut with right-hand flute geometry promote smooth chip evacuation and reduced vibration. This tool is centercutting, allowing direct plunge entry into the workpiece.

Suited for milling steel, stainless steel, cast iron, and high-temperature alloys in CNC machining centers and vertical mills. The 7-flute configuration increases the number of cutting edges in contact with the material, which supports higher feed rates and improved surface finish in finishing and semi-finishing passes. Typical users include machinist shops, tool rooms, and production CNC environments where cycle time and surface quality both matter.

Key Features

• 7 flutes for increased feed rate capability and improved surface finish
• Solid micrograin carbide construction for rigidity and wear resistance
• AlTiN coating for thermal protection and extended tool life at high speeds
• 37.5 degree helix angle for smooth cutting action and efficient chip flow
• Centercutting design allows plunge milling without a pre-drilled pilot hole
• Right-hand cut and right-hand flute orientation for standard CNC spindle compatibility

Compatibility

Designed as a direct-fit tooling solution for CNC machining centers and manual vertical mills accepting a 1 inch shank diameter tool holder, including standard ER, CAT, BT, and HSK collet and end mill holder systems.

Installation Notes

Installation should be performed by a qualified machinist or CNC setup technician. Ensure the machine spindle is fully stopped and the tool changer or spindle is locked before inserting or removing the end mill. Seat the shank fully into the tool holder to the recommended gauge-line depth and torque the retention mechanism per the tool holder manufacturer specification. Verify runout with a dial indicator before beginning a cut to protect both the tool and the workpiece.