Htc 120-4750 Square End Mill 3/4 in 4 Flute Solid Carbide

Product Description

The HTC 120-4750 is a solid carbide square end mill designed for precision milling operations in metal, composites, and other hard materials. With a 3/4 inch diameter and four helical flutes, this tool removes material efficiently while maintaining edge integrity. The bright/uncoated finish is suited for general-purpose applications where coating chemistry is not required or preferred. At 4 inches overall length with a 1-1/2 inch length of cut, it covers standard reach requirements without sacrificing rigidity. Machinists and tool-and-die professionals use this end mill in CNC machining centers and manual mills for profiling, slotting, and peripheral milling.

The 120-4750 fits residential and commercial machine shop environments, production facilities, and maintenance shops. It is a single-end tool with a square shank and standard length designation, making it straightforward to tool up in a standard collet or end mill holder. Right-hand cutting direction and right-hand flute spiral are standard for conventional and climb milling on most horizontal and vertical milling machines. This is a non-centercutting end mill, so it is not intended for direct plunge drilling into solid material.

Key Features

• 3/4 inch mill diameter with matching 3/4 inch shank diameter for secure, concentric holding
• Solid carbide construction for hardness, wear resistance, and thermal stability
• Four helical flutes for balanced chip evacuation and smooth surface finish
• 1-1/2 inch length of cut on a 4 inch overall length for standard-reach applications
• Bright/uncoated finish suitable for general-purpose milling without coating requirements
• Right-hand cut, right-hand helix - compatible with standard spindle rotation
• Non-centercutting design; use a pilot hole or ramp entry for pocket work

Compatibility

Designed as an OEM-style replacement and standard tooling option for 3/4 inch collet chucks, end mill holders, and hydraulic or shrink-fit holders used in CNC and manual milling applications in the Series 120 product line.

Installation Notes

Installation should be performed by a qualified machinist following shop safety procedures. Ensure the spindle is fully stopped and locked out before changing tooling. Seat the shank fully into the holder to the recommended engagement depth and torque the drawbar or set screws per the holder specification. Verify runout with a dial indicator before beginning the cut, as excessive runout accelerates tool wear and degrades surface finish.