Accupro 12182689 Square End Mill 0.9843 in 4 Flute Carbide

Product Description

The ACCUPRO 12182689 is a solid carbide square end mill designed for precision milling operations in ferrous and non-ferrous materials. With a 0.9843-inch mill diameter and a 1.4961-inch length of cut, this single-end tool delivers consistent material removal in both roughing and finishing passes. The micrograin carbide substrate provides hardness and wear resistance at the cutting edge. A TiCN (Titanium Carbonitride) coating reduces friction and extends tool life in harder workpiece materials. The 40-degree helix angle promotes efficient chip evacuation and smooth cutting action. Licensed machinists and CNC programmers specify this geometry for applications where surface finish and dimensional accuracy are critical.

This end mill is suited for vertical and horizontal milling centers, CNC machining centers, and manual knee mills running at appropriate surface footage for carbide tooling. The right-hand cut and right-hand spiral flute configuration is the standard setup for conventional and climb milling on most production equipment. The centercutting design allows plunge entry, making it viable for slot milling, pocket milling, and contour operations without a pre-drilled pilot hole. Regular length classification fits the majority of general-purpose fixturing setups without excessive overhang.

Key Features

• 0.9843-inch (25.00 mm) mill diameter with a tolerance of +0.000 / -0.002 inches for consistent fit
• 1.4961-inch (38.00 mm) length of cut supports full-depth slot and pocket work
• Micrograin solid carbide substrate for hardness and extended tool life
• TiCN coating reduces friction and improves performance in harder materials
• 40-degree helix angle with spiral flute for efficient chip evacuation
• Centercutting geometry allows direct plunge entry into workpiece material
• Right-hand cut, right-hand flute - standard orientation for most CNC and manual mills

Compatibility

Designed as an OEM-style replacement or direct-use solid carbide end mill for standard ER or side-lock toolholders accepting a 25.00 mm (0.9843-inch) shank diameter. Shank diameter tolerance is -0.0001 / -0.0004 inches for a secure, low-runout fit in precision collet systems.

Installation Notes

Installation should be performed by a qualified machinist or CNC setup technician following the machine tool manufacturer guidelines for toolholder torque and runout verification. Ensure the spindle and toolholder are clean and free of chips or debris before seating the shank. Overall length is 92.00 mm, so verify clearance with the workpiece, fixture, and machine travel limits before running a program. Follow your shop safety procedures for RPM limits, cutting fluid application, and secure workholding before initiating a cut.