Hertel 72033053 Chucking Reamer 0.3050 in Hss Straight

Product Description

The HERTEL 72033053 is a high-speed steel (HSS) chucking reamer designed to finish-ream drilled holes to a precise diameter of 0.3050 inches. Built with 6 straight flutes and a right-hand cutting direction, it delivers consistent bore quality in ferrous and non-ferrous metals. The straight-cylindrical shank mounts directly in a drill chuck or collet on a drill press, lathe, or CNC machine. Overall length is 6 inches with a flute length of 1.5 inches. The bright, uncoated finish suits general-purpose applications where coolant compatibility and close tolerances are the priorities. Machinists and tool-and-die tradespeople rely on this geometry for controlled material removal and accurate final hole sizing.

This reamer is suited for machine-shop production work, maintenance and repair operations, and toolroom applications where a 0.3050-inch finished bore is required. It is appropriate for use in mild steel, cast iron, aluminum, brass, and similar machinable materials. The straight-cylindrical shank makes it compatible with standard drill chucks and collet holders used on benchtop and floor-standing drilling equipment. Typical applications include bearing-bore finishing, dowel-hole sizing, and precision fit work in both job-shop and industrial settings.

Key Features

• 0.3050-inch finished-bore diameter for close-tolerance hole sizing
• 6-flute straight geometry provides smooth cutting action and good chip clearance
• HSS construction offers toughness and wear resistance in general-purpose machining
• Right-hand cutting direction compatible with standard machine spindle rotation
• Straight-cylindrical shank seats securely in drill chucks and ER-style collet holders
• Bright, uncoated finish allows use with a wide range of cutting fluids

Compatibility

Designed as a general-purpose chucking reamer for use in drill presses, lathes, milling machines, and CNC machining centers equipped with a standard drill chuck or straight-shank collet holder capable of accepting a 0.3050-inch shank.

Installation Notes

Chucking reamers are installed by a machinist or toolroom technician. Ensure the machine spindle is fully stopped and the chuck or collet is relieved of pressure before inserting or removing the reamer. Always apply an appropriate cutting fluid for the workpiece material to reduce heat buildup and extend tool life. Feed rate should be matched to the material and machine; forcing the reamer or running it dry can cause premature edge wear or bore oversize.