Hertel 72034721 Chucking Reamer 0.4720 in Hss 6 Flute

Product Description

The HERTEL 72034721 is a high-speed steel (HSS) chucking reamer designed for precision hole finishing in metal. It produces accurate, smooth bores to a finished diameter of 0.4720 inches. The reamer features a straight-cylindrical shank for secure chuck mounting in drill presses, lathes, and CNC machining centers. With 6 straight flutes and a bright, uncoated finish, it delivers clean material removal with right-hand cutting action. At 7 inches overall length with a 1-3/4 inch flute length, it is suited for through-holes and blind holes in general machining work. Machinists and tool-and-die professionals are the primary installers of this type of cutting tool.

This chucking reamer is used in machine shop environments for reaming drilled holes to a precise finished diameter. It is appropriate for ferrous and non-ferrous metals where close-tolerance hole sizing is required. Typical applications include production machining, maintenance and repair operations, and prototype work where hole geometry and surface finish matter. The straight flute geometry makes it suitable for interrupted cuts and short-chipping materials.

Key Features

• Finished reaming diameter of 0.4720 inches for close-tolerance hole sizing
• High-speed steel (HSS) construction for general-purpose metal cutting
• 6 straight flutes with right-hand cutting direction
• Bright, uncoated finish — no coating buildup to affect dimensional accuracy
• Straight-cylindrical shank fits standard drill chucks and collet holders
• 7 inch overall length provides reach for common through-hole applications

Compatibility

Designed as a standard chucking reamer for use in drill presses, engine lathes, and CNC machining centers equipped with a compatible chuck or collet system accepting a straight-cylindrical shank.

Installation Notes

Installation is performed by qualified machinists. Secure the shank firmly in a drill chuck or collet before operation and verify runout is within acceptable tolerance for the application. Always pre-drill the hole undersize before reaming — do not use a chucking reamer as a primary hole-making tool. Use appropriate cutting fluid for the workpiece material to extend tool life and improve surface finish.