Hertel 72019557 Chucking Reamer 0.1955 in Hss 6 Flute

Product Description

The HERTEL 72019557 is a straight-flute chucking reamer designed for precision hole finishing in metal machining operations. Built from high-speed steel (HSS) with a bright, uncoated finish, it delivers accurate sizing and smooth surface finishes in through-hole and blind-hole applications. The reamer measures 0.1955 inches in diameter with a 5-inch overall length and a 1-1/4-inch flute length. Six right-hand cutting flutes provide consistent chip evacuation and stable cutting action. The straight-cylindrical shank seats securely in standard drill chucks and collet holders. This tool is well suited for manual and CNC drilling operations requiring close-tolerance hole sizing.

This reamer targets shops and field machinists working with ferrous and non-ferrous metals where hole diameter accuracy is critical. It covers the 0.1500 to 0.1999 inch diameter range class and is a standard production choice for jig boring, fixture building, and general precision machining. The straight flute geometry makes it effective in softer materials and shorter-chipping metals. It is sold individually and is ready to run without additional prep or coating treatment.

Key Features

• 0.1955 inches cutting diameter for precise hole finishing in the #12 drill size class
• HSS construction provides durability and re-sharpenability for shop use
• Six straight flutes with right-hand cutting direction for stable, chatter-resistant performance
• Bright, uncoated finish — ready to use out of the package
• Straight-cylindrical shank compatible with standard drill chucks and ER collets
• 5-inch overall length with 1-1/4-inch flute length suits typical through-hole depths

Compatibility

Designed as an OEM-style chucking reamer for use in standard drill press, turret lathe, and CNC machining center setups accepting straight-cylindrical shank tooling in the applicable diameter range.

Installation Notes

Chucking reamers are installed and removed by machinists using appropriate chuck or collet toolholding equipment. Ensure the machine is fully powered down and spindle rotation has stopped before changing tooling. Apply cutting fluid appropriate for the workpiece material to extend tool life and improve surface finish. Do not use a chucking reamer to remove excessive stock — pre-drill or bore to within 0.005 to 0.015 inches of final diameter before reaming, following standard machining practice.