Hertel 72030455 Chucking Reamer 0.3045 in Hss 6 Flute

Product Description

The HERTEL 72030455 is a high-speed steel (HSS) chucking reamer designed to bring bored or drilled holes to a precise finished diameter. With a cutting diameter of 0.3045 inches, a 6-flute straight-flute configuration, and a right-hand cutting direction, this reamer delivers consistent, accurate sizing and a smooth bore finish. The bright, uncoated HSS construction handles a broad range of ferrous and non-ferrous workpiece materials. It is used in drill presses, lathes, and CNC machining centers wherever hole-finishing tolerances demand more precision than a drill alone can provide.

This chucking reamer is suited for production and job-shop machining environments where tight hole tolerances are required. The straight-cylindrical shank seats securely in standard chucks, collets, and floating holders. With an overall length of 6 inches and a flute length of 1.5 inches, it is configured for through-hole and moderate-depth blind-hole finishing operations in metalworking and light manufacturing applications. Machinists, toolroom technicians, and CNC operators are the primary installers and users of this tool.

Key Features

• 0.3045 inch cutting diameter for precise hole finishing within the 0.3000 to 0.3499 inch range
• 6-flute straight-flute geometry for consistent stock removal and smooth bore surface finish
• High-speed steel (HSS) construction provides durability across a wide range of workpiece materials
• Bright, uncoated finish — ready for use as-delivered or compatible with standard cutting fluids
• Straight-cylindrical shank fits standard drill chucks, ER collets, and floating reamer holders
• Right-hand cutting direction, standard orientation for conventional reaming setups

Compatibility

Designed as a standard chucking reamer for use in drill presses, engine lathes, and CNC machining centers equipped with a chuck, collet, or floating holder accepting a straight-cylindrical shank at 0.3045 inch diameter.

Installation Notes

This tool is installed and operated by machinists and toolroom technicians following standard machining safety practices. Ensure the machine spindle is fully stopped and locked out before inserting or removing the reamer from its holder. Use appropriate cutting fluid or lubricant for the workpiece material to extend tool life and improve finish quality. A pre-drilled or bored hole undersized by the recommended stock allowance for the diameter class should be prepared before reaming to achieve accurate results.