Hertel 72037070 Chucking Reamer 0.707 in Hss 8 Flute

Product Description

The HERTEL 72037070 is a straight-flute chucking reamer designed for precision hole finishing in metalworking applications. Built from high-speed steel (HSS) with a bright, uncoated finish, it delivers consistent bore sizing to a diameter of 0.7070 inches. The reamer features 8 right-hand cutting flutes and a straight-cylindrical shank for secure chuck mounting. With an overall length of 9 inches and a flute length of 2.25 inches, it is suited for through-hole and blind-hole reaming operations on the mill or lathe. Machinists and tool-room operators reach for this type of reamer when tight hole tolerances and smooth surface finishes are required.

This chucking reamer is used in general machining environments including job shops, tool rooms, and production facilities. It is appropriate for reaming pre-drilled holes in ferrous and non-ferrous metals where the target bore falls at 0.7070 inches. The straight-cylindrical shank mounts directly in a drill chuck, collet, or floating reamer holder. Right-hand cutting direction is standard for conventional machine operation. This tool is sold individually and is intended for single-use or recurring production operations where HSS performance meets the material and speed requirements of the job.

Key Features

• 0.7070 inch finished bore diameter for precision hole sizing
• 8 straight flutes for smooth cutting action and chip clearance
• High-speed steel (HSS) construction provides durability across a range of metals
• Bright, uncoated finish — ready to run without additional prep
• Straight-cylindrical shank for direct chuck or collet mounting
• Right-hand cutting direction compatible with standard machine rotation
• 9 inch overall length accommodates reach requirements in typical setups

Compatibility

Designed as an OEM-style chucking reamer for use in drill presses, lathes, and milling machines accepting a straight-cylindrical shank tool in the 0.7000 to 0.9999 inch reamer diameter range.

Installation Notes

Installation and operation of this reamer should be performed by a qualified machinist familiar with speeds, feeds, and cutting fluid requirements for the workpiece material. Power down and lock out the machine spindle before mounting or removing the tool from the chuck or collet. Use appropriate cutting fluid or coolant to extend tool life and maintain bore finish quality. Never exceed the recommended RPM for HSS tooling at the given diameter, and ensure the pre-drilled hole is sized correctly before reaming to prevent tool deflection or breakage.