Hertel 45676632 Chucking Reamer 0.394 in Solid Carbide

Product Description

The HERTEL 45676632 is a solid carbide chucking reamer designed for precision hole finishing in metalworking applications. It produces tight-tolerance bores with a 0.394-inch cutting diameter and a right-hand cutting direction. The straight shank seats directly into a drill chuck or collet holder on a mill or lathe. Six straight flutes deliver smooth, consistent material removal while the bright polished finish reduces friction and chip adhesion. With an overall length of 3.5 inches and a 1.25-inch flute length, it is suited for shallow to mid-depth through-holes and blind bores where dimensional accuracy is critical.

This reamer is intended for production and job-shop environments where machinists need reliable, repeatable hole sizing in steel, cast iron, aluminum, and similar machinable metals. It is a standard chucking reamer configuration and does not serve as a dowel pin reamer or an over/under size reamer. Typical applications include finishing pre-drilled or bored holes to final tolerance on CNC machining centers, manual mills, and lathes.

Key Features

• Solid carbide construction for hardness, wear resistance, and long tool life in demanding cuts
• 0.394-inch cutting diameter falls within the 0.3500 to 0.3999 inch decimal range
• Six straight flutes for smooth cutting action and clean hole finish
• Right-hand cutting direction compatible with standard spindle rotation
• Bright polished coating reduces built-up edge and aids chip evacuation
• Straight shank for direct chuck or collet mounting without adapters

Compatibility

Designed as an OEM-style chucking reamer for use in standard drill chucks, ER collet systems, and end mill holders accepting straight-shank tooling at the 0.394-inch diameter range.

Installation Notes

Installation and use should be performed by a qualified machinist familiar with rotating cutting tool safety. Always secure the shank fully in the chuck or collet and confirm runout before beginning a cut. Power down and lock out the machine spindle before changing or adjusting the tool. Do not exceed manufacturer-recommended feeds and speeds for solid carbide tooling in the material being machined.