Hertel 79890323 Chucking Reamer 11/32 in Solid Carbide

Product Description

The HERTEL 79890323 is a solid carbide chucking reamer designed for precision hole finishing in machine shop and production environments. Built with a straight flute geometry and straight cylindrical shank, this reamer delivers consistent, repeatable bore sizing in a wide range of materials. The 11/32 inch (0.3438 inch) diameter holds a tight tolerance of 0.0000 to 0.0003 inch over nominal, making it suitable for applications demanding close-fit hole standards. With a bright, uncoated finish and right-hand cutting direction, it is optimized for use in CNC machining centers, drill presses, and manual milling setups. Machinists and tooling specialists are the primary users of this type of precision cutting tool.

This chucking reamer is suited for reaming pre-drilled holes to final diameter in production and job shop settings. The 6-flute straight design provides smooth cutting action and good chip evacuation in through-hole and blind-hole applications across ferrous and non-ferrous workpiece materials. Its 3-1/2 inch overall length and 1-1/4 inch flute length accommodate standard depth requirements in typical machine tool setups. The solid carbide construction offers rigidity and wear resistance compared to high-speed steel alternatives, making it a reliable choice where dimensional consistency across high run quantities is required.

Key Features

• Solid carbide construction for rigidity and extended tool life in production reaming
• 11/32 inch (0.3438 inch) diameter with a tolerance of 0.0000 to 0.0003 inch over nominal
• 6 straight flutes for smooth cutting action and efficient chip clearance
• Straight cylindrical shank compatible with standard drill chucks and collet holders
• Right-hand cutting direction, bright uncoated finish
• 3-1/2 inch overall length with 1-1/4 inch flute length

Compatibility

Designed as a straight-shank chucking reamer for use in standard drill chucks, ER collets, and similar machine tool holding systems capable of accepting a straight cylindrical shank in the 11/32 inch diameter range.

Installation Notes

This tool is installed and operated by machinists and tooling technicians. Ensure the workpiece and spindle are fully secured before operation, and confirm the shank is properly seated and clamped in the toolholder before running. Always ream from a previously drilled or bored pilot hole sized appropriately undersize for the intended material and application. Follow applicable shop safety procedures and machine tool manufacturer guidelines when selecting feeds and speeds for carbide tooling.