Hertel 72039639 Chucking Reamer 0.9630 in Hss 8 Flute

Product Description

The HERTEL 72039639 is a straight-flute chucking reamer designed for precision hole finishing in metal fabrication and machining applications. Built from high-speed steel (HSS) with a bright, uncoated finish, this reamer holds a diameter of 0.9630 inches and delivers a right-hand cutting action across 8 flutes. The straight-cylindrical shank seats securely in standard drill chucks and machine tool spindles. At 10 inches overall length with a 2-5/8 inch flute length, it is sized for through-hole and blind-hole reaming operations on mill-drill setups, lathes, and CNC machining centers. Licensed machinists and toolroom professionals are the primary installers.

This chucking reamer is suited for production and toolroom environments where hole tolerances and surface finish are critical. It is appropriate for reaming operations in ferrous and non-ferrous metals where HSS tooling provides adequate hardness and wear resistance. The 0.9630-inch diameter falls within the 0.7000 to 0.9999 inch reamer diameter range, making it a standard selection for close-tolerance bore finishing at near one-inch diameter. Typical applications include fixture plates, bearing bores, and precision-fit pin holes in job-shop and production settings.

Key Features

• 0.9630 inch reamer diameter for close-tolerance hole finishing
• 8 straight flutes for smooth, consistent stock removal
• High-speed steel (HSS) construction for durability across ferrous and non-ferrous materials
• Bright, uncoated finish suitable for use with cutting fluids
• Straight-cylindrical shank for direct chuck or collet mounting
• Right-hand cutting direction compatible with standard machine spindle rotation

Compatibility

Designed as a standard chucking reamer for use in drill presses, lathes, and machining centers that accept a straight-cylindrical shank toolholder or drill chuck.

Installation Notes

Installation and operation should be performed by qualified machinists following shop safety procedures. Ensure the machine spindle is fully stopped and locked out before mounting or removing the reamer. Secure the straight-cylindrical shank firmly in a drill chuck or collet to minimize runout. Always use an appropriate cutting fluid for the workpiece material to extend tool life and maintain surface finish quality.