Hertel 45675758 Chucking Reamer 0.278 in Solid Carbide

Product Description

The HERTEL 45675758 is a solid carbide chucking reamer designed for precision hole finishing in machine shop and manufacturing environments. With a reaming diameter of 0.278 inches and a bright polished finish, this tool delivers tight dimensional tolerances and smooth bore surfaces. The six-flute, right-hand cutting geometry improves chip evacuation and surface finish quality compared to lower flute-count reamers. At 3.25 inches overall length with a 1.125-inch flute length and a straight shank, it mounts directly in standard drill chucks, collets, or floating reamer holders without modification.

This chucking reamer is suited for finish reaming operations on ferrous and non-ferrous workpieces in CNC machining centers, lathes, and drill presses. It falls within the 0.25 to 0.2999 inch diameter range and is a common choice for production reaming of dowel pin holes, bushing bores, and close-tolerance through-holes. Machinists and tool-and-die professionals working to tight positional tolerances will find the solid carbide construction advantageous in harder materials and high-cycle applications.

Key Features

• Solid carbide construction for rigidity and long tool life in demanding materials
• Bright polished finish reduces friction and supports smooth chip flow
• Six right-hand flutes for improved surface finish and stock removal balance
• Straight shank compatible with standard drill chucks, collets, and floating holders
• 0.278 inch reaming diameter for precision bore sizing
• Compact 3.25-inch OAL suits confined workpiece access and short-reach setups

Compatibility

Designed as an OEM-style solid carbide chucking reamer for use in standard straight-shank toolholding systems including drill chucks and precision collets sized for the 0.278-inch shank diameter.

Installation Notes

Chucking reamers are installed and operated by machinists and tool-and-die technicians. Ensure the machine spindle is fully stopped and the tool is securely seated and tightened in the holder before operation. Use appropriate cutting fluid for the workpiece material to maximize tool life and achieve the desired surface finish. Do not use this reamer as a drill; it is a finishing tool and requires a pre-drilled or bored hole close to final size before reaming.