Hertel 2412286 Chucking Reamer 7/16 in 6 Flute Cobalt

Product Description

The HERTEL 2412286 is a chucking reamer designed to bring bored or drilled holes to precise final diameter. Built from cobalt steel with a bright uncoated finish, it handles tough materials that would wear down standard high-speed steel tooling. The 7/16 inch (0.4375 inch) diameter reamer features 6 right-hand spiral flutes and a straight-cylindrical shank for secure chuck mounting. Overall length is 7 inches with a 1-3/4 inch flute length. This tool is suited for production and maintenance machinists who need consistent, repeatable hole finishing on manual or CNC equipment.

This reamer is used in metal fabrication shops, maintenance and repair operations, and production machining environments where accurate hole sizing is required. The cobalt steel construction makes it appropriate for stainless steel, cast iron, high-temperature alloys, and other abrasion-resistant materials. The straight-cylindrical shank fits standard drill chucks and collet holders, making it easy to deploy on drill presses, lathes, and machining centers. Right-hand cutting direction follows standard rotation for most machine setups.

Key Features

• Cobalt steel construction for improved wear resistance in hard and abrasive materials
• 6 right-hand spiral flutes for smooth chip evacuation and consistent finish
• 0.4375 inch (7/16 inch) diameter for precise hole sizing in that bore range
• Straight-cylindrical shank fits standard chucks and collet holders
• Bright uncoated finish — no coating buildup to affect dimensional tolerance
• Right-hand cutting direction compatible with standard machine rotation

Compatibility

Designed as a standard chucking reamer for use in drill presses, lathes, turret mills, and CNC machining centers equipped with drill chucks or collet systems accepting a straight-cylindrical shank in the 7/16 inch diameter class.

Installation Notes

Installation and use should be performed by a qualified machinist. Power down and lock out the machine before mounting or removing the reamer from the chuck or collet. Ensure the shank is fully seated and the chuck is properly tightened before running. Use appropriate cutting fluid for the workpiece material to extend tool life and improve surface finish.