Hertel 79890489 Chucking Reamer Wire 10 0.1935 in Carbide

Product Description

The HERTEL 79890489 is a solid carbide chucking reamer designed to finish-ream holes to a precise wire size 10 diameter of 0.1935 inches. Built for tight-tolerance work, it holds a diameter tolerance of 0.0000 to 0.0002 inches, making it suitable for applications where bore accuracy is critical. The straight flute geometry and right-hand cutting direction deliver a clean, consistent finish in through-holes and blind holes alike. With an overall length of 3 inches and a 1-inch flute length, this reamer is sized for short-reach setups in a drill press, CNC machining center, or manual lathe with a chuck holder.

This reamer is used in precision machining environments where holes must meet close dimensional tolerances for pin fits, bushing installations, or mating component alignment. The straight-cylindrical shank allows secure clamping in standard drill chucks or collet holders without additional adapters. It is appropriate for ferrous and non-ferrous materials where solid carbide tooling is preferred over high-speed steel for improved wear resistance and longer tool life between resharpenings.

Key Features

• Wire size 10 diameter: 0.1935 inches with tolerance of 0.0000 to 0.0002 inches for precision bore finishing
• Solid carbide construction for superior hardness and wear resistance compared to HSS
• Straight flute design suited for through-hole and stable blind-hole reaming
• Right-hand cutting direction compatible with standard spindle rotation
• Straight-cylindrical shank fits standard drill chucks and collet systems without adapters
• Bright uncoated finish — suitable for use with cutting fluids across a range of workpiece materials

Compatibility

Designed as an OEM-style replacement or direct-use chucking reamer for machining setups requiring a wire size 10 straight-shank reamer in drill press, lathe, or CNC applications.

Installation Notes

Installation and use should be performed by a qualified machinist or tooling technician. Ensure the spindle is fully stopped and the machine is powered down before loading or removing the reamer from the chuck or collet. Secure the straight shank with adequate clamping force to prevent slippage under cutting load. Apply an appropriate cutting fluid for the workpiece material to extend tool life and maintain hole finish quality.