Harvey Tool 846410-C3 Back Chamfer Cutter 0.115in 5 Flute

Product Description

The HARVEY TOOL 846410-C3 is a solid carbide back chamfer cutter designed to deburr and chamfer the back side of drilled holes and bores where standard tools cannot reach. The cutter features a 0.115 inch diameter head, a 90-degree included angle, and a 0.011 inch chamfer width, making it suitable for precision finishing operations in tight or blind-bore applications. With 5 flutes and an AlTiN coating, the tool delivers clean, consistent cuts on hardened steels, stainless steels, and other difficult-to-machine alloys. This cutter is used by machinists and tool-and-die professionals in CNC and manual machining environments.

The 846410-C3 is intended for back chamfering and deburring in precision machining applications where a standard chamfer mill cannot access the underside of a feature. The burr end geometry allows the cutter to engage the workpiece after passing through the hole. The 0.087 inch neck diameter provides clearance in narrow bores, and the 1/8 inch shank is compatible with standard collet systems. Typical applications include aerospace, medical device, and general precision metalworking where clean back-side chamfers are required for part fit and assembly.

Key Features

• 0.115 inch cutter head diameter with 90-degree included angle for consistent back chamfer geometry
• 0.011 inch chamfer width for fine, controlled material removal
• 5-flute design for smooth cutting action and improved surface finish
• Solid carbide construction for rigidity and wear resistance in demanding materials
• AlTiN coating enhances heat resistance and tool life in hardened and high-alloy steels
• 0.087 inch neck diameter provides clearance in restricted bore access

Compatibility

Designed as an OEM-style back chamfer cutter compatible with standard 1/8 inch collet tool holders used in CNC machining centers and manual mills.

Installation Notes

Installation and use of this tool should be performed by qualified machinists familiar with small-diameter carbide tooling. Ensure the spindle and collet are clean and properly torqued before use. Handle solid carbide tools with care to avoid chipping — do not drop or clamp directly on the fluted section. Follow applicable shop safety procedures and machine manufacturer guidelines for speed and feed parameters.