Hertel 72296510 Chucking Reamer 0.3730 in Hss 6 Flute

Product Description

The HERTEL 72296510 is a high-speed steel (HSS) chucking reamer designed to bring bored or drilled holes to a precise finished diameter. With a cutting diameter of 0.3730 inches and a bright, uncoated HSS construction, this reamer delivers accurate sizing in ferrous and non-ferrous materials on manual and CNC machines. The 6-flute spiral configuration with right-hand cutting and right-hand spiral provides smooth chip evacuation and a clean finished bore. Overall length is 5 inches with a 1.75-inch flute length. Machinists and tool room operators rely on chucking reamers like this for close-tolerance hole finishing in production and job shop environments.

This reamer is suited for machine spindle applications where a straight-cylindrical shank can be gripped directly in a drill chuck, collet, or floating reamer holder. The dowel pin reamer designation indicates it is sized to produce holes that accept standard dowel pins at the stated nominal diameter. Typical applications include precision fixture making, die and mold work, and general machining operations where a reamed finish is required to achieve proper fit and alignment. It is not an over- or under-size reamer; it cuts at the stated nominal diameter.

Key Features

• 0.3730-inch cutting diameter within the 0.3500 to 0.3999-inch reamer diameter range
• 6-flute spiral geometry with right-hand spiral and right-hand cutting direction for smooth chip flow
• HSS tool material provides toughness and wear resistance across a broad range of workpiece materials
• Bright/uncoated finish for direct use or as a base for field applied coatings
• Straight-cylindrical shank compatible with standard drill chucks, collets, and floating holders
• Dowel pin reamer sizing for precise alignment hole production

Compatibility

Designed as an OEM-style chucking reamer for machine spindle applications accepting a straight-cylindrical shank; confirm spindle bore and holder capacity before installation.

Installation Notes

Installation and use should be performed by a qualified machinist familiar with reaming operations and machine tool safety. Always power down and lock out the machine before loading or removing the reamer from its holder. Use a floating reamer holder where possible to allow the reamer to self-align to the existing hole and avoid bell-mouthing. Apply appropriate cutting fluid for the workpiece material to extend tool life and improve surface finish.