Hertel 8272403 Chucking Reamer 0.3735 in Hss 6 Flute

Product Description

The HERTEL 8272403 is a straight-flute chucking reamer designed for precision hole finishing in metal machining applications. Built from high-speed steel (HSS) with a bright, uncoated finish, it delivers consistent dimensional accuracy when enlarging and finishing pre-drilled or bored holes to tight tolerances. The reamer measures 0.3735 inches in diameter with a 7-inch overall length and a 1.75-inch flute length. Its straight-cylindrical shank seats securely in standard drill chucks and machine tool holders. With 6 flutes and right-hand cutting direction, it produces smooth bore surfaces suitable for close-tolerance fits. This tool is sold individually and weighs approximately 0.19 pounds.

The HERTEL 8272403 is suited for use in CNC machining centers, manual lathes, drill presses, and turret lathes where precise hole sizing is required. It handles a wide range of materials typical in general metalworking and production environments. The 0.3735-inch diameter falls within the 0.3500 to 0.3999 decimal inch range, making it a practical choice for finish-reaming holes that require close dimensional control. Machinists and toolroom professionals select this reamer for production runs and maintenance work where bore quality directly affects fit and function of assembled components.

Key Features

• 0.3735-inch cutting diameter for precision hole finishing to close tolerances
• 6 straight flutes with right-hand cutting direction for smooth, consistent bore surfaces
• HSS construction provides durability across a range of ferrous and non-ferrous metals
• Bright, uncoated finish suitable for use with standard cutting fluids
• Straight-cylindrical shank fits standard drill chucks and collet holders without modification
• 7-inch overall length with 1.75-inch flute length balances reach and rigidity

Compatibility

Designed as a standard chucking reamer for use in drill chucks, collet chucks, and machine tool holders that accept a straight-cylindrical shank in the appropriate diameter range.

Installation Notes

Installation and use of this tool should be performed by a qualified machinist or toolroom technician. Secure the shank fully in the chuck or collet before operation and verify runout is within acceptable limits for the application. Always apply appropriate cutting fluid to extend tool life and improve bore finish. Do not force the reamer into undersized holes; the pre-drilled or bored hole should be within the recommended stock allowance for reaming before use.