Osg 403-1000 Square End Mill 1 Inch 3 Flute Solid Carbide

Product Description

The OSG 403-1000 is a single-end square end mill designed for precision milling operations in metal fabrication and machining applications. Built from micrograin solid carbide, it delivers rigidity and wear resistance required for demanding cuts. The tool features a 1 inch cutting diameter, a 1.5 inch length of cut, and a 4 inch overall length with a 1 inch shank diameter. With 3 spiral flutes ground at a 30-degree helix angle and a right-hand cut with right-hand flute direction, it supports efficient chip evacuation and smooth surface finishes. The centercutting geometry allows plunge entry, expanding its range of usable operations.

The OSG 403-1000 is suited for milling slots, pockets, profiles, and contours in ferrous and non-ferrous materials. It is appropriate for use on vertical machining centers and manual knee mills where a regular-length, uncoated solid carbide end mill is specified. The tool belongs to the OSG Series 403 line and is sized for heavy stock removal or finish passes requiring a full 1 inch diameter cut. It is typically specified by machinists and CNC operators working in job shops, tool rooms, or production environments.

Key Features

• Micrograin solid carbide construction for hardness and edge retention
• 3 spiral flutes at 30-degree helix angle for efficient chip evacuation
• Centercutting design allows plunge milling entry
• Right-hand cut and right-hand flute direction for standard spindle operation
• Uncoated finish suitable for use with cutting fluids on a wide range of materials
• Regular length geometry provides stiffness and reduces deflection at 1 inch diameter

Compatibility

Designed as an OEM-style tooling solution for machining centers and manual mills accepting a 1 inch straight shank end mill in the OSG Series 403 configuration.

Installation Notes

Installation of end mills should be performed by a qualified machinist following the machine tool manufacturer guidelines. Ensure the spindle is fully stopped and the machine is powered down before changing tooling. Use a proper collet or end mill holder rated for a 1 inch shank diameter and torque the retention hardware to the machine manufacturer specification. Verify runout with a dial indicator before beginning a cut to confirm proper seating.