Hertel 72021009 Chucking Reamer 0.2100 in Hss 6 Flute

Product Description

The HERTEL 72021009 is a straight-flute chucking reamer designed for precision hole finishing in metal machining applications. Built from high-speed steel (HSS) with a bright, uncoated finish, this reamer delivers accurate sizing of drilled or bored holes to a finished diameter of 0.2100 inches. The straight-cylindrical shank seats securely in standard drill chucks or collet holders, and the right-hand cutting direction suits conventional CNC and manual machine setups. At 5 inches overall length with a 1-1/4 inch flute length and 6 flutes, it provides clean, consistent stock removal on through and blind holes in production and job-shop environments.

This reamer is suited for machinists and toolroom professionals working on precision hole tolerances in ferrous and non-ferrous materials. Typical applications include finishing close-tolerance holes in fixtures, jigs, machine components, and tooling plates. The 0.2100-inch diameter falls within the 0.2000 to 0.2499-inch range, making it a standard selection for reaming operations that require repeatable final sizing after drilling or boring. It is sold individually and intended for use in drill presses, lathes, CNC machining centers, and manual milling machines.

Key Features

• 0.2100-inch finished diameter for precision hole sizing
• HSS construction provides durability across a range of workpiece materials
• 6 straight flutes for smooth, chatter-resistant cutting action
• Bright, uncoated finish compatible with standard cutting fluids
• 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, lathes, milling machines, and CNC machining centers accepting a straight-cylindrical shank.

Installation Notes

Chucking reamers are installed and used by machinists and toolroom technicians. Secure the straight shank firmly in a properly sized collet or drill chuck before operation, and verify runout before cutting. Always apply appropriate cutting fluid for the workpiece material to extend tool life and achieve finish tolerances. Feed rates and spindle speeds should follow established reaming guidelines for HSS tooling to avoid tool deflection or oversize holes.