Hertel 72038458 Chucking Reamer 0.845 in Hss 8 Flute

Product Description

The HERTEL 72038458 is a straight-shank chucking reamer designed for precision hole finishing in metal components. Built from high-speed steel (HSS) with a bright, uncoated finish, it delivers a nominal cutting diameter of 0.8450 inches across 8 straight flutes. The right-hand cutting geometry produces clean, dimensionally accurate bores. With an overall length of 9.5 inches and a flute length of 2.5 inches, this reamer suits a range of through-hole and blind-hole finishing operations. It is sized and configured for use in CNC machining centers, drill presses, and manual lathes with standard chucking collets or drill chucks.

This reamer is intended for machine-tool applications where a finished bore must meet tight tolerances. It fits within the 0.7000 to 0.9999 inch reamer diameter range and is well-suited for jobshop, toolroom, and production-floor environments. The straight-cylindrical shank allows direct clamping in standard drill chucks or collet holders without adapters. Machinists, tool-and-die makers, and maintenance technicians working on ferrous and non-ferrous materials will find this a direct-fit option for finish-reaming operations in that diameter class.

Key Features

• 0.8450 inch nominal cutting diameter for precise bore finishing
• 8 straight flutes provide consistent chip evacuation and smooth bore surface
• Right-hand cutting direction compatible with standard machine-tool spindle rotation
• High-speed steel (HSS) construction supports use across a broad range of workpiece materials
• Bright, uncoated finish — no coating delamination risk during regrinding
• Straight-cylindrical shank seats directly in drill chucks and collet holders

Compatibility

Designed as an OEM-style machine reamer for use in drill presses, CNC machining centers, and turret lathes equipped with standard chucking systems accepting a straight-cylindrical shank in the 0.8450 inch diameter class.

Installation Notes

Chucking reamers are installed and used by machinists and tool-and-die professionals. Power down and lock out the machine spindle before loading or removing the reamer from the chuck or collet holder. Ensure the shank is fully seated and the holding device is tightened to the machine manufacturer's specification before operation. Use appropriate cutting fluid for the workpiece material to extend tool life and maintain bore finish quality.