Hertel 72308414 Chucking Reamer Wire 41 0.0960 in Cobalt

Product Description

The HERTEL 72308414 is a wire-gauge chucking reamer in size 41, designed to finish-ream holes to a precise diameter of 0.0960 inches. Built from cobalt steel, it handles higher cutting temperatures and harder workpiece materials better than standard high-speed steel tools. The straight, four-flute design runs right-hand cutting with a bright, uncoated finish suited for close-tolerance through-hole and blind-hole reaming. Overall length is 3.5 inches with a 0.75-inch flute length and a straight-cylindrical shank for secure chuck retention. Machinists and toolroom technicians use this reamer in drill presses, lathes, CNC machining centers, and manual mills where controlled hole sizing is required.

This reamer is intended for light material removal to bring a drilled or bored hole to final finished size in metalworking and precision machining applications. The wire-size 41 designation places it in the 0.0500 to 0.0999 inch diameter range, making it appropriate for small-diameter hole finishing in ferrous and non-ferrous workpiece materials. The cobalt steel construction extends tool life when working in tougher alloys or at elevated spindle speeds where standard HSS tooling would degrade prematurely.

Key Features

• Wire gauge size 41 with 0.0960 inch finished diameter for precise small-hole tolerances
• Cobalt steel construction provides improved heat and wear resistance over standard HSS
• Four straight flutes with right-hand cutting direction for consistent chip evacuation
• Straight-cylindrical shank for direct chuck or collet clamping without slippage
• Bright, uncoated finish — compatible with a wide range of cutting fluids and materials
• Compact 0.75-inch flute length suits shallow-hole and thin-workpiece reaming applications

Compatibility

Designed as an OEM-style replacement or standard toolroom chucking reamer for machine tools accepting a straight-cylindrical shank in the applicable shank diameter; verify shank diameter against your chuck or collet specification before ordering.

Installation Notes

Installation and use of this reamer should be performed by a qualified machinist or toolroom technician. Power down and lock out the machine spindle before loading or removing the reamer from the chuck or collet. Ensure the shank is fully seated and the holding device is tightened to the machine manufacturer's specification. Always apply a suitable cutting fluid for the workpiece material and never exceed the recommended feed and speed ranges for cobalt tooling in the diameter class.