Hertel 72029804 Chucking Reamer 0.2980 in Hss Straight Flute

Product Description

The HERTEL 72029804 is a high-speed steel (HSS) chucking reamer designed to finish-ream drilled holes to precise tolerances. With a 0.2980-inch cutting diameter and a bright, uncoated finish, it delivers clean, close-tolerance bores in ferrous and non-ferrous materials. The straight flute geometry and right-hand cutting direction make it well-suited for through-holes and blind holes where chip evacuation is straightforward. At 6 inches overall length with a 1.5-inch flute length, it fits standard drill press, lathe, and CNC spindle setups. Machinists, tool-and-die makers, and maintenance technicians use this reamer when a drilled hole must be brought to a final dimensional size with improved surface finish and roundness.

This chucking reamer is used in machine shop, manufacturing, and maintenance-repair-operations (MRO) environments. It is a practical choice for finish-reaming holes in fixtures, jigs, dies, and mechanical assemblies where tight hole tolerances are required. The straight-cylindrical shank seats directly into standard drill chucks, collet chucks, or floating reamer holders without modification. It is suited for manual and CNC-controlled machines operating at appropriate surface speeds for HSS tooling in the material being cut.

Key Features

• 0.2980-inch cutting diameter for finish reaming to close tolerance
• High-speed steel (HSS) construction for durability across a broad range of workpiece materials
• 6-flute straight design promotes consistent cutting action and smooth bore finish
• Bright, uncoated finish — no coating buildup to affect dimensional accuracy
• Straight-cylindrical shank fits standard drill chucks and collet holders
• Right-hand cutting direction for conventional machine spindle rotation

Compatibility

Designed as a standard chucking reamer for use in drill presses, engine lathes, turret lathes, and CNC machining centers equipped with a drill chuck or collet holder sized to accept a straight-cylindrical shank in the 0.2980-inch diameter class.

Installation Notes

Chucking reamers are installed and operated by machinists or maintenance technicians. Always secure the shank fully in the chuck or collet and verify runout before cutting. Power down and lock out the machine spindle before changing tooling. Use appropriate cutting fluid for the workpiece material and select spindle speed per HSS reamer guidelines for the material being reamed — excessive speed reduces tool life and degrades hole quality.