Htc 120-4187 Square End Mill 3/16 in 4 Flute Solid Carbide

Product Description

The HTC 120-4187 is a solid carbide square end mill designed for precision milling operations in metal fabrication, tool and die, and general machining environments. With a 3/16 inch cutting diameter and four helical flutes, this end mill delivers clean, accurate cuts in ferrous and non-ferrous materials. The bright, uncoated finish is suited for applications where coating is not required or where the workpiece material is sensitive to coated tooling. At 2 inches overall length with a 5/8 inch length of cut, this tool fits standard toolholders used in CNC and manual milling setups. It is a single-end tool in HTC Series 120.

This end mill is intended for use in milling operations requiring a compact, short-reach cutting tool. The 3/16 inch shank diameter matches the cutting diameter, allowing direct mounting in collet chucks and other standard toolholding systems without reduction. Right-hand cutting and right-hand flute direction make it compatible with conventional spindle configurations. Typical applications include slotting, profiling, and peripheral milling on steel, aluminum, brass, and similar materials. The standard length designation suits production and prototype work where rigidity and tool life are priorities.

Key Features

• Solid carbide construction for superior hardness and wear resistance compared to HSS tooling
• Four helical flutes for efficient chip evacuation and improved surface finish
• Right-hand cutting and right-hand flute direction for use with standard spindle rotation
• Bright, uncoated finish suitable for a wide range of base materials
• Non-centercutting design - not intended for plunge cutting
• Standard length profile maximizes rigidity and minimizes deflection in tight setups

Compatibility

Designed as an OEM-style solid carbide square end mill for use in standard 3/16 inch collet chucks, end mill holders, and compatible toolholding systems on CNC machining centers and manual knee mills.

Installation Notes

Installation should be performed by a qualified machinist or CNC operator. Secure the shank fully within the toolholder to the recommended engagement depth before tightening. Ensure the spindle is fully stopped and the machine is locked out before changing tooling. This end mill is non-centercutting and must not be used for direct plunge operations - ramp or helical entry is required when cutting closed pockets.