Hertel 45676004 Chucking Reamer 0.309 in Solid Carbide

Product Description

The HERTEL 45676004 is a solid carbide chucking reamer designed for precision hole finishing in machined components. With a 0.309-inch diameter, 6-flute straight configuration, and right-hand cutting direction, this reamer delivers tight tolerance sizing in through and blind holes. The bright polished finish reduces friction and promotes smooth chip evacuation. Solid carbide construction offers superior hardness and wear resistance compared to high-speed steel, making it well suited to production runs on ferrous and non-ferrous workpiece materials. Licensed machinists and CNC operators are the primary users of this tool.

This chucking reamer is appropriate for use in CNC machining centers, drill presses, and manual mills where a straight shank tool is required. The 0.309-inch cutting diameter falls within the 0.3000 to 0.3499 inch reamer diameter range, targeting precision bore finishing applications. The 1-1/8-inch flute length accommodates typical hole depths encountered in job shop and production machining environments. The straight shank interfaces directly with standard drill chucks and collet holders without requiring a tapered adapter.

Key Features

• Solid carbide construction for extended tool life and dimensional stability under thermal load
• 6-flute geometry provides fine surface finish and accurate sizing in a single pass
• Bright polished finish reduces built-up edge and improves chip flow
• Right-hand cutting direction compatible with standard CNC and manual spindle rotation
• Straight shank fits standard drill chucks and collet systems without adapters
• Overall length of 3.25 inches suits compact tooling setups and short-reach applications

Compatibility

Designed as a straight-shank chucking reamer for use in drill chucks and collet holders on CNC machining centers, drill presses, and milling machines requiring a 0.309-inch finish reamer.

Installation Notes

Installation is performed by qualified machinists following standard toolroom procedures. Secure the straight shank firmly in a collet or drill chuck, verifying runout before use, as excessive runout will compromise bore tolerance and surface finish. Power down the spindle completely and follow lockout procedures before changing or adjusting the tool. Do not use this reamer to remove heavy stock; pre-drill or bore the hole to within a few thousandths of final diameter before reaming.