Accupro 12179343 Corner Radius End Mill 3/4 in 3 Flute

Product Description

The ACCUPRO 12179343 is a solid carbide corner radius end mill designed for precision milling operations in ferrous and non-ferrous materials. Built from micrograin solid carbide with a bright/uncoated finish, it delivers consistent cutting performance in demanding machining environments. The 3/4-inch diameter tool carries a 0.03-inch corner radius across 3 right-hand spiral flutes, producing smooth edge transitions and reducing stress concentrations in finished workpiece profiles. With a 1-5/8-inch length of cut and 4-inch overall length, it suits a wide range of peripheral and slot milling applications on CNC machining centers and manual mills.

This end mill is suited for job shops, tool rooms, and production machining environments where accurate corner radii and tight diameter tolerances are required. The centercutting geometry allows direct plunge entry, adding flexibility for ramping and pocket milling operations. The single-end configuration and 3/4-inch shank diameter make it compatible with standard ER and side-lock toolholders commonly found on vertical and horizontal machining centers.

Key Features

• Micrograin solid carbide construction for rigidity and wear resistance
• 0.03-inch corner radius reduces corner chipping on finished profiles
• 3 right-hand spiral flutes with right-hand cutting direction
• Centercutting design allows plunge, ramp, and helical interpolation entry
• Bright/uncoated finish suitable for non-ferrous and general-purpose milling
• Tight mill diameter tolerance of +0.0002/-0.0008 inches for consistent fitment and runout control

Compatibility

Designed as a direct-fit replacement or standard tooling selection for CNC machining centers and manual mills using 3/4-inch straight-shank toolholders.

Installation Notes

Installation and tool changes must be performed by a qualified machinist with the spindle fully stopped and machine power isolated. Seat the shank fully into the toolholder and torque the retention mechanism per the toolholder manufacturer specifications. Verify runout with a dial indicator before beginning the cut. Follow all applicable shop safety and machine guarding practices during setup and operation.