Hertel 2350502 Chucking Reamer 25/32 in Hss 8 Flute

Product Description

The HERTEL 2350502 is a high-speed steel (HSS) chucking reamer designed to finish-ream drilled or bored holes to a precise diameter of 25/32 inches (0.7812 decimal inch). With an overall length of 9-1/2 inches and a 2-1/2 inch flute length, this reamer delivers controlled material removal and accurate sizing in a wide range of metalworking applications. The bright, uncoated finish is standard for general-purpose HSS reamers used in production and job-shop environments. Eight right-hand spiral flutes provide smooth cutting action and efficient chip evacuation, making this tool well suited for machinists and toolroom professionals working on precision bore finishing.

This chucking reamer is intended for use in drill presses, lathes, machining centers, and CNC equipment where a floating or rigid chuck holds the straight-cylindrical shank. It is applied in job shops, production facilities, and maintenance environments where hole diameter tolerances require a dedicated finishing pass after drilling or boring. Typical workpiece materials include mild steel, alloy steel, aluminum, brass, and other machinable metals. The right-hand cutting direction suits standard spindle rotation without additional setup changes.

Key Features

• 25/32 inch (0.7812 inch) reamer diameter for precise hole finishing
• 8 right-hand spiral flutes for smooth cutting action and chip clearance
• High-speed steel (HSS) construction provides good toughness and wear resistance
• Bright, uncoated finish suited to general-purpose machining applications
• Straight-cylindrical shank compatible with standard drill chucks and collets
• 9-1/2 inch overall length with 2-1/2 inch flute length for reach and rigidity balance

Compatibility

Designed as a standard chucking reamer for use in any machine tool equipped with a chuck or collet capable of holding a straight-cylindrical shank in the 25/32 inch diameter range.

Installation Notes

Chucking reamers are installed and removed by qualified machinists following standard lockout/tagout procedures before any tooling change on powered equipment. Ensure the shank is fully seated and securely clamped in the chuck or collet before starting the spindle. Use appropriate cutting fluid for the workpiece material to extend tool life and maintain bore finish quality. Do not use a chucking reamer to remove more stock than the tool is rated for — pre-drill or bore the hole to the correct stock allowance before reaming.