Hertel 79890174 Chucking Reamer 7/64 in Solid Carbide

Product Description

The HERTEL 79890174 is a solid carbide chucking reamer designed for precision hole finishing in metalworking and machining applications. With a 7/64-inch (0.1094-inch decimal) diameter, a 4-flute straight flute geometry, and a bright uncoated finish, this reamer delivers tight dimensional accuracy with a diameter tolerance of 0.0000 to 0.0002 inches. The straight cylindrical shank allows it to seat securely in standard drill chucks or collet holders. Machinists and tool-and-die technicians use chucking reamers like this one to bring drilled or bored holes to a precise finished diameter with a smooth, clean surface. The solid carbide construction provides hardness and wear resistance well suited to ferrous and non-ferrous materials.

This reamer is suited for light-duty precision reaming operations in CNC machining centers, drill presses, and manual lathes. The 5/8-inch flute length accommodates shallow through-holes and blind holes of moderate depth, while the 2-1/4-inch overall length keeps the tool compact and rigid. It is appropriate for production shops, tool rooms, and maintenance machining environments where consistent hole sizing is required. The right-hand cutting direction is standard for conventional spindle rotation.

Key Features

• Solid carbide construction for hardness and extended tool life in demanding materials
• 7/64-inch diameter (0.1094 inches decimal) with a tolerance of 0.0000 to 0.0002 inches for precise hole finishing
• 4-flute straight flute design for clean, smooth cutting action
• Straight cylindrical shank for secure seating in chucks or collets
• Bright uncoated finish — ready for use across a broad range of workpiece materials
• Right-hand cut, compatible with standard spindle rotation

Compatibility

Designed as a standard chucking reamer for use in drill chucks and collet systems accepting a straight cylindrical shank; verify chuck capacity accommodates the straight shank diameter before installation.

Installation Notes

Chucking reamers should be installed by a qualified machinist or toolroom technician. Power down and lock out the machine before changing tooling. Seat the shank fully and securely in the chuck or collet before operation. Use appropriate cutting fluid for the workpiece material to extend tool life and maintain surface finish quality.