Hertel 72308141 Chucking Reamer Size 14 Cobalt Steel

Product Description

The HERTEL 72308141 is a wire size 14 chucking reamer designed to finish-ream holes to a precise diameter of 0.1820 inches. Built from cobalt steel with a bright, uncoated finish, this reamer is suited for applications where heat resistance and tool hardness are priorities. The straight, 6-flute geometry cuts right-hand with clean chip evacuation in through-holes and shallow blind-hole applications. Overall length is 4.5 inches with a 1.125-inch flute length and a straight-cylindrical shank for direct chuck mounting. Machinists and tool-room professionals use this reamer to bring drilled or bored holes to final dimensional tolerance in ferrous and stainless materials.

This chucking reamer is used in machine shop, maintenance, and production environments where hole sizing must meet close tolerances. The wire size 14 designation targets a decimal diameter of 0.1820 inches, placing it within the 0.1500 to 0.1999 inch diameter range. Typical applications include fixture work, tooling fabrication, and precision component repair. The straight-cylindrical shank mounts directly in a drill chuck, collet, or floating reamer holder on a drill press, lathe, or machining center.

Key Features

• Cobalt steel construction for improved heat and wear resistance over standard HSS
• 0.1820 inch finished hole diameter, wire size 14
• 6 straight flutes for smooth cutting action and consistent chip flow
• Right-hand cutting direction with bright, uncoated finish
• Straight-cylindrical shank for universal chuck and collet compatibility
• 4.5 inch overall length with 1.125 inch flute length

Compatibility

Designed as a standard chucking reamer for use in drill presses, lathes, and machining centers equipped with a drill chuck, collet, or floating holder accepting a straight-cylindrical shank.

Installation Notes

Chucking reamers are installed by machinists using standard drill chucks or precision collets; ensure the shank is fully seated and the holder is securely tightened before operation. Always ream at reduced spindle speeds compared to drilling, with appropriate cutting fluid applied to extend tool life and maintain hole finish. Do not attempt to remove excessive stock with a reamer; pre-drill or bore the hole to within recommended reaming allowance before use. Follow shop safety practices and machine guarding requirements whenever operating rotating cutting tools.