Hertel 72028202 Chucking Reamer 0.2820 in Hss 6 Flute

Product Description

The HERTEL 72028202 is a straight-flute chucking reamer designed to bring bored or drilled holes to a precise finished diameter of 0.2820 inches. Manufactured from high-speed steel (HSS) with a bright, uncoated finish, this reamer delivers consistent material removal and accurate sizing in metalworking and machining applications. The straight-cylindrical shank seats securely in standard chucks and collets. With six flutes and right-hand cutting action, it produces smooth, round, and dimensionally accurate holes suitable for close-tolerance fits. Overall length is 6 inches with a flute length of 1.5 inches.

This chucking reamer is suited for machine shop and production environments where hole finishing to a tight tolerance is required. It is used in drill presses, lathes, CNC machining centers, and manual milling machines. The 0.2820-inch diameter falls within the 0.2500 to 0.2999 inch reamer diameter range, making it appropriate for finish-reaming operations in steel, cast iron, aluminum, and similar machinable materials. Machinists, tool-and-die makers, and production machine operators are the primary installers and users.

Key Features

• 0.2820-inch finished reaming diameter for close-tolerance hole sizing
• High-speed steel (HSS) construction for durability across a broad range of machinable metals
• Bright, uncoated finish — no coating buildup to affect dimensional accuracy
• Six straight flutes with right-hand cutting direction for smooth, chatter-resistant operation
• Straight-cylindrical shank compatible with standard chucks and collets
• 6-inch overall length with 1.5-inch flute length for access in typical machine setups

Compatibility

Designed as a standard chucking reamer for use in any machine tool equipped with a chuck or collet capable of accepting a straight-cylindrical shank in the 0.2820-inch diameter class.

Installation Notes

Chucking reamers are installed and operated by machinists using drill presses, lathes, or machining centers — ensure the machine spindle is fully stopped and locked out before mounting or removing the tool. Secure the straight-cylindrical shank firmly in a properly sized chuck or collet to prevent runout, which directly affects hole quality and tool life. Use appropriate cutting fluid for the workpiece material to extend tool life and achieve the best surface finish. Pre-drill or bore the hole to within the recommended stock allowance before reaming to avoid overloading the flutes.