Internal Tool 68-1280 Corner Rounding End Mill 1/4 in

Product Description

The INTERNAL TOOL 68-1280 is a solid carbide corner rounding end mill designed to produce consistent radius profiles on workpiece edges. It features a 1/4-inch mill diameter, a 1/16-inch corner radius, and three straight flutes in a right-hand cutting direction. The double-end configuration doubles usable tool life before replacement. With a micrograin carbide construction and bright uncoated finish, this end mill delivers reliable edge quality across a broad range of materials. It is used in CNC machining centers and manual milling machines by machinists and tool-and-die professionals in production and job-shop environments.

This end mill is suited for edge rounding and radius profiling operations on steel, stainless steel, cast iron, non-ferrous metals, super alloys, and titanium. The 1/4-inch shank diameter fits standard collets and end mill holders common to both vertical and horizontal milling setups. Its 2.5-inch overall length provides sufficient reach for most standard fixturing configurations without excessive overhang. Applications include deburring, corner break operations, and decorative or functional radius blending on machined components across aerospace, automotive, and general manufacturing work.

Key Features

• Double-end design extends tool life by providing two usable cutting ends
• Micrograin solid carbide construction for hardness and wear resistance in demanding materials
• 1/16-inch corner radius for consistent, repeatable edge profiles
• Three straight flutes with right-hand helix for smooth chip flow
• Uncoated bright finish compatible with a wide range of workpiece materials including super alloys and titanium
• Cylindrical 1/4-inch shank fits standard collet and end mill holder tooling

Compatibility

Designed for use on steel, stainless steel, cast iron, non-ferrous metals, super alloys, and titanium. Compatible with any milling machine or CNC machining center accepting a 1/4-inch cylindrical shank end mill holder or collet.

Installation Notes

Installation and tool changes should be performed by a qualified machinist with the spindle fully stopped and the machine in a locked-out, de-energized state per applicable safety procedures. Confirm the collet or tool holder is clean and undamaged before seating the shank. Do not exceed the tool manufacturer's recommended speeds and feeds for the workpiece material. Inspect both cutting ends before use and do not run a chipped or damaged tool.