Harvey Tool 943430-C3 Back Chamfer Cutter 0.165in 5 Flute

Product Description

The HARVEY TOOL 943430-C3 is a solid carbide back chamfer cutter designed for deburring and chamfering the reverse side of holes, slots, and undercut features without repositioning the workpiece. The cutter head measures 0.165 inches in diameter with a 90-degree included angle and a 0.029-inch chamfer width. Five flutes deliver efficient chip evacuation and a smooth finish on the back edge. An AlTiN coating extends tool life in ferrous and high-temp alloy materials. This tool is used by machinists and CNC operators working in precision machining environments where back-side edge conditioning is required.

This back chamfer cutter suits CNC machining centers and manual mills in both job shop and production environments. It is well-suited for aerospace, automotive, and general precision metalworking applications where back-chamfering through-holes and cross-drilled passages is a standard operation. The 3/16-inch shank diameter and 0.101-inch neck diameter allow reach into confined bore geometries while maintaining rigidity. The 2-inch overall length provides clearance for most standard workholding setups.

Key Features

• 0.165-inch cutter head diameter with a 90-degree included angle for consistent back chamfer geometry
• 0.029-inch chamfer width per side for controlled edge break
• 5-flute design for improved surface finish and chip clearance
• AlTiN coating provides heat resistance and extended tool life in ferrous and high-temperature alloy materials
• Solid carbide construction for rigidity and dimensional stability under cutting loads
• 0.101-inch neck diameter enables reach into tight bore and cross-hole features

Compatibility

Designed as an OEM-style solid carbide back chamfer cutter compatible with standard 3/16-inch collet toolholding systems on CNC machining centers and manual milling machines.

Installation Notes

Installation should be performed by a qualified machinist or CNC operator. Secure the 3/16-inch shank in a matched collet or end mill holder and verify runout before cutting. Confirm the machine spindle is fully stopped and locked out before loading or removing the tool. Do not exceed the cutter geometry or depth of engagement recommended for the workpiece material and machine capability.