Hertel 79891313 Chucking Reamer 7.00mm Solid Carbide

Product Description

The HERTEL 79891313 is a solid carbide chucking reamer designed for precision hole finishing in metal components. Built with 6 straight flutes and a right-hand cutting direction, it produces accurate, smooth bores in a single pass. The reamer holds a diameter tolerance of 0.0000 to 0.0003 inches, making it well suited for applications where hole size consistency is critical. At 7.00mm (0.2756 inches) in diameter with a bright, uncoated finish, this tool is appropriate for use in CNC machining centers, manual mills, and drill press setups where a straight-cylindrical shank is required.

This chucking reamer is used in machine shop and production environments for finish-reaming drilled or bored holes to precise diameter. The solid carbide construction handles hardened and abrasive workpiece materials better than high-speed steel alternatives. It is typically installed in a collet chuck or drill chuck on a milling machine, lathe, or CNC machining center. The 1.125-inch flute length and 3.25-inch overall length suit short to medium-depth through-holes in typical workpiece thicknesses encountered in general metalworking and toolroom applications.

Key Features

• Solid carbide construction for rigidity and wear resistance in abrasive materials
• 6 straight flutes with right-hand cutting direction for smooth, consistent stock removal
• Diameter tolerance of 0.0000 to 0.0003 inches for tight-tolerance hole finishing
• Bright, uncoated finish suitable for a wide range of workpiece materials
• Straight-cylindrical shank compatible with standard collet and drill chuck toolholders
• Compact 3.25-inch overall length minimizes deflection in short-reach applications

Compatibility

Designed as a standard chucking reamer for use in collet chucks and drill chucks accepting a straight-cylindrical shank in the 0.2500 to 0.2999 inch diameter class, suitable for CNC machining centers, manual mills, and lathes.

Installation Notes

This reamer is installed by machinists in a collet chuck or drill chuck prior to spindle operation. Always ensure the workpiece and toolholder are securely clamped before beginning the reaming cycle. Pre-drill the hole to the correct starting diameter, leaving only the required reaming stock, before engaging the reamer. Power down the machine and lock out energy sources before changing or inspecting the tool.