Hertel 83246769 Chucking Reamer 0.312 in Solid Carbide

Product Description

The HERTEL 83246769 is a solid carbide chucking reamer designed for precision hole finishing in metalworking and machining applications. With a reamer diameter of 0.312 inches and a tight tolerance of 0.0000 to 0.0003 inches, this tool delivers accurate, repeatable finished bores. The 6-flute straight flute geometry produces a smooth surface finish and consistent chip evacuation. At 3.25 inches overall length with a 1.125-inch flute length and a straight cylindrical shank, it mounts directly in drill chucks or collet holders. Right-hand cutting direction and a bright uncoated finish make it suitable for a range of common workpiece materials. Machinists and tool-and-die technicians are the primary users.

This chucking reamer is used in production machining, job shop, and maintenance-repair-overhaul environments where precise hole sizing is required. It is rated as a dowel pin reamer at the 0.3120 D/P size, making it well suited for applications that require accurate pin fits, close-tolerance assembly bores, and reamed holes in ferrous and non-ferrous materials. The straight flute design is particularly effective in through-hole applications and on CNC machining centers, turret lathes, and drill presses where chatter control and bore finish are critical.

Key Features

• Solid carbide construction for extended tool life and dimensional stability
• 0.312-inch diameter with 0.0000 to 0.0003-inch tolerance for precision bore sizing
• 6-flute straight flute geometry for smooth finish and consistent chip flow
• Dowel pin reamer rated at 0.3120 D/P for accurate pin-fit applications
• Straight cylindrical shank compatible with standard drill chucks and collet holders
• Bright uncoated finish suitable for a wide range of workpiece materials

Compatibility

Designed as an OEM-style solid carbide chucking reamer for use in standard drill chucks and collet-style toolholders on CNC machining centers, manual mills, turret lathes, and drill presses requiring a straight cylindrical shank.

Installation Notes

Installation and use of this reamer should be performed by qualified machinists familiar with rotating cutting tools and machine tool operation. Ensure the machine spindle is fully stopped and locked out before mounting or removing the reamer. Secure the straight shank firmly in a properly sized collet or drill chuck to minimize runout. Apply appropriate cutting fluid for the workpiece material and do not exceed the recommended feed and speed parameters for solid carbide tooling in the material being reamed.